All language subtitles for How.It.Really.Happened.S05E07_English

♪♪

Blitzer:
We're following
the breaking news,

important breaking news,
out of Boston.

A pair of bombings rocked
the finish line

at the historic Boston Marathon.

Abbott:
I had been kind of catapulted
through the open doors inside.

Silva:
It was just full chaos,
at that point.

Gregory:
First responders rushing over,
not knowing if a third

or a fourth or a fifth bomb
was getting ready to go off.

[ Explosion ]
Abbott: I remember thinking,
"I could die here."

Blitzer:
Clearly an attack.

We don't know who is
responsible for this,

but we have now concluded
this is a terrorist attack.

♪♪

♪♪

Hello and welcome
to "How It Really Happened."

I'm Hill Harper.

Every year, on Patriots' Day,
revelers from all over the world

take to the streets of Boston
for the marathon.

But in 2013, this iconic event
was brought to a shocking end

when, at 2:49 pm,

two brothers unleashed
a horrendous,

unforgivable attack

on the unsuspecting crowds
near the finish line.

Twin bombs were ignited

and instantly, hundreds
of people were brutally injured,

and three killed.

Federal and local
investigators teamed up

to track down the perpetrators
of this appalling act

and, in less than five days,
using state-of-the-art tech,

some old-fashioned police work,
and a little luck,

they were somehow able to.

It all seems far-fetched,

even for the plot
of a Hollywood film,

but it's all true.

Here's how it really happened.

♪♪

♪♪

Marathon Monday in 2013
started perfectly.

♪♪

It was a beautiful day.

♪♪

By midafternoon, the excitement
of the elite runners was over

and the people who are running
the marathon, at that point,

are people who are
running for charities.

Chakravarty:
They have a lot
of supporters there.

They were probably six or seven
people deep beyond the barriers.

People out there, rooting on

their friends
and neighbors and family.

They were all there
to see someone

crossing the finish line.

That day felt like
any other day.

Jeff Bauman was
at the marathon that day

with several of his friends.

Jeff remembers getting
bumped into

by a guy who wasn't having
a good time,

a guy who wasn't smiling.

Bauman:
He was right next to me,
you know, at that point,

and he had a bag
and he had his glasses.

He just struck me odd.

♪♪

All of a sudden,
probably 50 feet away,

at Marathon Sports,

there was an explosion,
a burst, that shot up and out.

[ Explosion ]

Johnson:
It was absolutely thunderous.

♪♪

Silva:
That exact moment,
I was on the finish line

on Boylston Street
and I had my cameras rolling.

♪♪

Immediately, you knew
something was very wrong.

♪♪

In just a second,
everything changes.

Jeff Bauman is lying
on Boylston Street,

feeling himself bleed out.

He thinks to himself, "Okay,
this is where it's gonna end."

Tlumacki:
I saw a runner had fallen
on the ground.

I was confused.

I didn't know
what was happening.

[ Camera shutter clicks ]

♪♪

I turned to the only
colleague of mine

who was still
on the photo bridge

and I said,
"What do we do?"

And he looked at me and said,
"I don't know."

I looked down the street
and, at that moment,

the second bomb went off.

[ Explosion ]
[ Screaming ]

The second bomb went off
12 seconds later,

about 550 feet
down Boylston Street,

in front of a restaurant
called the Forum restaurant.

♪♪

[ Screaming ]

♪♪

Pagan:
We're right
by the first explosion.

When that second
explosion happened,

it seemed like
it was just right there.

[ Explosion ]

There was a blue, hazy smoke
that just hung over the area.

Once it cleared, you could see
right down onto the sidewalk.

It just revealed the horror.

♪♪

Krystle Campbell was
from Medford, Massachusetts,

a local girl who grew up
in the area, fun-loving.

She was with her best friend
right at the finish line.

I saw her
through my viewfinder.

She had her arm
hugging her friend

and, a few minutes later,
she was dead.

♪♪

There was a mass panic,
obviously.

[ Explosion ]

♪♪

People start scaling
the barricades,

trying to tip them over.

At that point,
my mind just calculated

everything coming together.

♪♪

We've had an attack.
[ Panting ]

Man over radio:
Secondary devices here!

There's secondary devices here!

♪♪

Elias:
I ran up to the fence,
looked over the side,

and all you saw were bodies.

Thirty feet across
of just carnage.

♪♪

In the middle of all of this,

I remember seeing a little boy
and he was sitting up

and he was just staring up
kind of in our direction.

You thought, "Wow.

This isn't real."

♪♪

Then it was just full chaos,
at that point.

People trying to pull
the barriers back...

♪♪

...trying to assess
what happened,

how many people were dead,
how many people were injured.

My God.
-The people closest

to the explosions

suffered the most
significant injuries.

[ Sirens wailing ]

I remember seeing Carlos run
across Boylston Street.

[ Sirens wailing ]

I managed to jump the fence,
holding my flag in one hand

and my camera
in the other hand.

The first person he came
across was Jeffrey Bauman.

Arredondo:
He was very much awake.

He was very pale,
but he was bleeding on his leg.

That will forever be

frozen in my mind

because his eyes were open

and I couldn't believe
that someone

who was so gravely injured
could be conscious.

Carlos stayed with him, got him
loaded into a wheelchair,

and then accompanied him
to the transport

that brought Jeff
to the hospital.

And I told him to hold on,
hold on.

Bauman:
When Carlos picked me up

and threw me
into the wheelchair,

then I was like, "Alright,
maybe Igonna make it."

Jeff ends up losing both
of his legs below the knee.

One of the most iconic
images from that day

is that picture of Jeff Bauman
in the wheelchair

and Carlos Arredondo,
the man with the cowboy hat.

But at the beginning,
there was some suspicion

about Carlos
being there so quick

and whether he was involved
with what had happened.

He said his cellphone
was confiscated by the FBI.

Authorities questioned him
right away

and it obviously became
apparent pretty quickly

that Carlos had nothing
to do with it.

He became known as "the man
in the cowboy hat,"

and became like very
representative of the city

and everything
that is good and kind.

But it goes to show
how chaotic things were

in the aftermath
of the bombing,

that someone so good,
so kind,

could be considered a suspect.

[ Sirens wailing ]

Abbott:
It was a tradition

for my friends and I
to go every year.

At 2:49, I had just walked
over to the Forum restaurant.

Immediately,
I heard an explosion...

[ Explosion ]

...and kind of remember us

all looking
in the direction of it

and, before there was
a chance to react,

the second explosion occurred.

[ Explosion ]
[ Screaming ]

[ Explosion ]

The next thing I knew,

I was on the ground
inside of Forum restaurant.

I had been, you know,
kind of catapulted

through the open doors inside.

And I remember,
when I kind of came to,

seeing a lot of glass
and blood on the ground

and smoke in the air
and it was difficult to hear.

I remember seeing people,
you know,

running towards the back exit
of the building,

but my foot was
in tremendous pain

and I knew I couldn't
get up and run.

♪♪

♪♪

Very promptly, law enforcement,
first responders,

and ordinary citizens
rushed in to help.

She's mobile!
She's mobile!

Get her out of here!

One thing that impressed me,
over and over again,

in the immediate
aftermath of the bombings,

was the extent to which
absolute strangers

stepped up to help strangers.

Men and women
whipping off their belts

and turning them
into makeshift tourniquets.

I remember the manager
of Marathon Sports,

where the first bomb went off,
his window shattered,

grabbing things
off of his shelves

to turn into makeshift
tourniquets

to save people's lives.

[ Screaming outdoors ]

First responders rushing over,

not knowing if a third
or a fourth or a fifth bomb

was getting ready to go off.

♪♪

Sydney and Celeste Corcoran
are a mother and daughter

who were at the marathon
as well,

near the finish line,
when the bomb exploded.

I remember seeing

Celeste Corcoran laying
on the ground.

Her husband, Kevin Corcoran,
put a belt around her leg

and then, he got another belt
from an onlooker

and put it
around her other leg.

Her daughter Sydney was probably
20 feet away from her,

laying on the ground.

She was being helped
by two men

who were applying
a tourniquet to her leg

and putting pressure on it.

She remembered one man
putting his head next to hers --

a stranger -- and saying,

"You're gonna be fine.
You're gonna be fine."

Down the street at the Forum,

Heather Abbott was also helped
by complete strangers.

I remember thinking, you know,
"I could die here,"

and I started
to call out for help.

As people ran by me, I thought,
you know, "Who's gonna stop?"

I was very lucky that a woman
named Erin Chatham stopped.

When she saw my foot,

she realized she wasn't gonna
be able to do it on her own

and she went to get her husband.

It didn't take long at all
before Matt Chatham came

and picked me up.

Matt Chatham is a former

New England Patriots
football player.

I remember,
as Matt was carrying me,

looking behind us and seeing
a trail of blood follow us

and knowing that
it was coming from me.

♪♪

The question became,
"Who did this?"

Were they local?
Were they from somewhere else?

At this point in time,
there are no official suspects.

There's always a race

to try to get those folks
before they can get away.

♪♪

Keilar:
We have some breaking news.

Let's go down to Boston.

Apparently, there's been
an explosion

-This is CNN.
-at the Boston Marathon,
I am told.

One of our producers,
Matt Frucci,

is there on the ground,
talking to us by phone.

What can you tell us, Matt?

Frucci:
It was about 15, 20 minutes ago,

near the finish line
on Boylston Avenue

here in Boston,
when I heard two explosions.

♪♪

Rebekah Gregory was
near the finish line

with her little son Noah.

♪♪

I remember that I was
thrown back

and I could only lift my head

and I was frantically trying
to figure out what was going on.

It looked like something
out of a horror movie

and I just thought,
"This is it.

I'm gonna die.

I'm gonna die right here
on this pavement."

I was trying to figure out
where Noah was,

but I couldn't really
verbalize that.

I was just screaming
and in pain.

I had never felt pain like that
in my entire life.

I said a prayer in my head.

"This is it for me.

Take me, but let me know
that Noah's okay."

♪♪

With my eardrums
being blown out,

I shouldn't have been able
to hear my little boy,

but I very clearly
heard him screaming,

"Mommy! Mommy! Mommy!"

And I looked to the right of me

and Noah was in the arms
of a police officer.

No one knew who each other
were with that day

and so Noah and I were taken

to two completely
separate hospitals.

Later, I saw that there was
a photo taken of Noah.

I could just see the pain
in my little boy's eyes

and just the confusion
on what was happening.

♪♪

A gentleman came up and tied
a tourniquet on my leg.

I remember justbegging
the people in the ambulance,

"Put me out of my misery
because I can't handle this."

[ Siren wailing ]

I knew my life would never
be the same.

Man:
At this time, we have all
the victims off the scene.

Evans:
I got to commend
all the first responders.

I think, within 20 minutes,
that whole scene was clear.

264 people were raced,

by any means necessary,
to the hospital.

Of those 264 injured,
17 became amputees

and a few lost both their legs,

like Celeste Corcoran

and Jeff Bauman.

I thought there would've been
a lot more fatalities,

to be honest with you.

As we've been telling you,
there are three people dead

in these twin bombings
at the Boston Marathon.

Such an iconic day in this city.

Patty:
[ Crying ] You couldn't ask
for a better daughter.

[ Sniffle ] I can't believe
this has happened.

In addition to the terrible
lost of Krystle Campbell,

the two other people killed
that day

were Lingzi Lu
and Martin Richard.

Lingzi Lu was a graduate student
at Boston University.

Wedge:
Her and her friend were actually
going to the Apple Store

to get a piece of gear
that she needed.

They were walking by the bomb
site when the bomb detonated.

♪♪

And Martin Richard --
such a shame.

Martin Richard
was just a young boy

who was at the event
with his family.

He just happened to be
up on the gate,

rooting people on,
unfortunately,

when that second bomb
went off.

The other day,
I came across some photos

from a neighborhood party.

He was wearing a smile
that could light up Fenway Park.

♪♪

These could be
your best friends.

They could be your neighbors.

Those were our victims.
These were real people.

These were Bostonians.

It was shattering.

Evans:
I took it personal,
as a marathoner,

as a resident
of the city of Boston,

and as a Boston policeman.

To blow up our marathon,
to blow up our city,

that got personal
for a lot of us.

Man:
Marathon's done.
Those runners are just

gonna head out
to the Commons, okay?

Marathon's done.

We're following
the breaking news,

important breaking news,
out of Boston.

A pair of bombings rocked
the finish line

at the historic
Boston Marathon.

Both explosions
are captured on video

and somewhere in this crowd
of race-day onlookers

is the person responsible.

Investigators just had
to find them.

Blitzer:
Clearly an attack.

No one yet has claimed
responsibility.

We don't know who is
responsible for this,

but, clearly,
we have now concluded,

this is a terrorist attack.

I think what the experts
could immediately tell

about this attack was
it was meant to hurt people.

Then the question became,
"Who did this?"

At this point in time,
there are no official suspects.

Silva:
Were they local?
Were they from somewhere else?

Nobody knew.
Nobody had any idea.

Why would anybody go harm
innocent people?

This was an act of war
against the city of Boston

and the nation, really.

We got to get who did this.

In any of these attacks,
every second,

every hour,
every day goes by,

you get a little bit further
behind the perpetrators,

so there's always a race

to try to get those folks
before they can get away.

President Obama called
Governor Patrick immediately

and said,
"You have our full support."

We still do not know
who did this, or why,

but, make no mistake --

we will get
to the bottom of this.

Any responsible individuals

will feel the full weight
of justice.

The process of collecting
evidence began immediately.

At this time, we are looking
for the public's cooperation.

It was clear that they believed
that video and photos

held the key
to identifying the suspects.

♪♪

♪♪

My mom tells me the story
about how,

when she walked
into the ICU room,

that the doctor said I was in,

she came back and she
begged the doctor.

She said, "You have
to take me to my daughter

because she's not in this room."

My own mother -- my own mom --
didn't recognize who I was.

♪♪

We've had a horrific
attack here

in Boston this afternoon.

The city was very much
emotionally bruised

in the days
following the bombing.

No other time in the city can I
remember people were afraid.

We're asking that everyone be
on a state

of heightened vigilance.

What's going on here?

They had no idea
who they were looking for.

Wedge:
Are they part of a cell?

It was a pretty terrifying time,
to be honest with you.

We'll be working diligently
to gather information

and gather all the facts

and bring those who are
responsible for this crime

to justice
as swiftly as possible.

There were thousands of people
on Boylston Street, alone.

Where do you start?

♪♪

The process of collecting
evidence began immediately.

There were three big categories
of evidence...

Chakravarty:
We knew that the universe
of people

who likely did this
were carrying a cellphone.

It was also possible
that they used the cellphones

to coordinate with each other,

so we acquired the phone records
for all of the phones

that were bouncing
off of the towers

that were closest to the sites
of those two blasts.

By collecting that data,
you can then compare it

to phone numbers
of known extremists

or people who are currently
under investigation,

so we did that right away.

Next, forensically, you look
to the crime scene itself

to reveal evidence that can
somehow trace you back

to the identities of the people
who have placed those devices.

♪♪

We are in the process
of securing

and processing
the most complex crime scene

that we've dealt with in the
history of our department.

It was an enormous crime scene.

There was evidence everywhere.

Evidence was blown on top
of cars, on top of windowsills.

I remember
that evidence was found

on the sixth floor

of a nearby hotel.

There were blood samples,
glass samples.

There was so much evidence
on the scene,

they took over
Black Falcon Pier,

which is the main warehouse

and loading dock
on the waterfront.

The Black Falcon terminal
evidence processing center

was the size
of two football fields.

They built a massive grid

and they put all the evidence
on that grid

to show where
it was actually found.

Essentially reconstructing
the crime scene.

They had the perfect space
to be able to recreate it

because of the size
of the space.

And then, for the pieces
of evidence

that required
more detailed analysis,

they loaded it
on a plane twice a day

that flew back
to our lab in Quantico.

So that cycle continued,
hour after hour,

as we chipped our way
through that crime scene.

The nature of the plume of smoke
indicated it was some kind

of low-explosive type
of powder,

things that would be
suggestive of an IED.

Our lab went to work

at basically
putting it back together,

looking at the components
of the bomb,

what actually housed
the explosive.

The investigation has yielded
major new clues.

Sources now say
the explosive devices

were apparently made
from pressure cookers

hidden in backpacks.

We quickly determined
that the bombs had been

constructed
inside pressure cookers

and the explosive material
was taken from firecrackers.

It was combined with things
like ball bearings and nails

and pieces of steel
to create shrapnel.

♪♪

The third component was the one
that we thought would be,

probably, the most definitive,

but we knew would take
the most time,

and that is culling
through the volumes of video

[ Camera shutter clicking ]
and photographic evidence...

[ Explosion ]

...from hundreds
of thousands of people

taking photos
and potential videos

and having surveillance cameras

that lined
the Boston Marathon route.

♪♪

At this time, we are looking
for the public's cooperation.

Evans:
We appealed to the public.

You know, when you have
25,000 runners

coming down Boylston Street,

we knew a lot of loved ones
had some video footage.

If there's any video,
any photographic evidence,

if you can please contact
the FBI hotline.

Boy, did we get a response.

We received hundreds
of thousands
of video submissions.

It's our intention to go
through every frame

of every video that we have

to determine exactly
who was in the area.

Chakravarty:
We assembled teams
to methodically go

through citizen-provided media.

They honed in,

looking for the proverbial
needle in a haystack.

It was clear that they believed
that video and photos

held the key
to identifying the suspects.

♪♪

Investigators were
under tremendous pressure.

Chakravarty:
We didn't know
who the perpetrators were.

We didn't know whether
the attacks were over.

We didn't know whether they
had more bombs.

There was definitely a mentality
that it was a matter of time

before they may attack again.

We felt, "Let's get
who caused this tragedy

before they hurt anybody else."

The weight of the world was
on my shoulders,

as well as many others
of my partners.

We will go to the ends
of the Earth

to identify the subject
or subjects

who are responsible
for this despicable crime

and we will do everything we can
to bring them to justice.

♪♪

Welcome back
to "How It Really Happened."

We know now
that the horrific bombings

at the Boston Marathon
were carried out

by Tamerlan Tsarnaev and his
younger brother Dzhokhar,

but neither had sent
a threat in advance,

nor claimed responsibility
immediately after the attacks,

so, in those first few days,

the number one question
on everyone's minds?

"Who would do this?"

♪♪

[ Explosion ]

Davis:
This cowardly act
will not be taken in stride.

We will turn every rock over

to find the people
who are responsible for this.

The demand for information
and answers

is immediate and intense.

Who brought these devices in?

♪♪

The bombings occurred
on tax day, April 15th,

so we, at first,
thought it might be

some domestic terrorist group

that was opposed to the
United States government

and didn't like paying taxes.

Just by looking at some of the
characteristics of the bombing,

the people that came to mind
were al-Qaeda.

MacLellan:
You're thinking it's a huge,
huge plot.

I said, "No one from Boston
would ever do this

because they know
what it means to us."

♪♪

Tamerlan, Dzhokhar,
and the Tsarnaev family

came to the United States
from Dagestan

in the early 2000s.

And they end up in Cambridge.

The Tsarnaev brothers were here
with their father, Anzor;

their mother, Zubeidat;
and their two sisters.

Chakravarty:
They grew up in Cambridge.

They went to Cambridge
public schools.

Cullison:
I got to know them in 2003.

They had not yet really

acclimated to American society.

That's one of the reasons
I became friendly with them,

because I was one of the few
Russian speakers

in the neighborhood.

Dzhokhar was a much
more passive child,

who would sort of sit at the
back of the room and listen.

It was clear that Tamerlan was
the prize horse of the family.

He was the one who they
really placed a lot of hope in.

They were sort of interested
in getting me to know Tamerlan

to sort of give him advice
on where to go to school

and how to conduct himself

and insert himself
into the U.S. society.

They simply didn't really have
a very good grasp

of what was really possible
in the United States.

Tamerlan had some idea
that he was going

to make a lot of money
and have a Mercedes-Benz,

so I sensed that there were
some difficulties coming.

He had ambitions
to become an engineer,

but he took a year off
from school in order to box.

Tamerlan was a great boxer.

His dream was to fight for the
United States Olympic Team.

Vasquez:
He loved boxing.

It was his passion.

It was his outlet.

As he got older and he started
fighting semi-pro, he learned

that he would never be able
to be on the Olympic Team

because he wasn't
an American citizen

and a lot of people told us
that was a big blow to him

and to the family.

We don't know this for a fact,
but our assumption is that some

of Tamerlan's frustrations
about his life here

in the United States
likely emerged

from his failure
to progress as a boxer.

He continued working out
at gyms and whatnot,

but it wasn't the professional
path that he was on before.

♪♪

Armstrong:
Tamerlan ended up meeting
a young woman

named Katherine Russell.

She came from a wealthy family
in Rhode Island.

Her dad was a doctor.

Her mom was a nurse.

Armstrong:
Quiet girl, by all accounts.

They hit it off.
Their relationship blossoms.

They fell in love
and they started dating

and they got married.

She was raised as a Christian.

Chakravarty:
But as she got closer
to Tamerlan,

she became a Muslim.

She lived
with the Tsarnaev family

in their home in Cambridge,
in relatively close quarters,

and became pregnant
and had a daughter.

One of the great mysteries

of the Boston Marathon
bombing investigation is

what Katherine Russell might

or might not have known prior
to the bombings.

She was never charged federally,
but that remains, today,

to be one of the great
unresolved mysteries

of the Boston Marathon
bombing investigation.

♪♪

From all appearances,
Dzhokhar seems

to have assimilated better
than Tamerlan.

If you listen
to Dzhokhar's teachers,

he was like
Mr. All-American Boy.

Dzhokhar goes to high school

at a very prestigious school
in Cambridge --

Cambridge Rindge and Latin.

It's a high school
previously attended

by Matt Damon,
Ben Affleck,

and Patrick Ewing.

Dzhokhar Tsarnaev was
very popular in school,

very well-liked
by his teachers, his friends.

He was Captain
of the wrestling team.

Always a cordial kid,
happy, peaceful.

There was nothing malicious
about him.

Dzhokhar Tsarnaev matriculated

at the University
of Massachusetts Dartmouth.

His grades started
to decline precipitously

and he began to be more involved

with his friends,
doing other things,

like smoking
and distributing marijuana.

If you look at Dzhokhar's
Twitter feed,

it's largely
about trying to meet girls

and take naps
and eat cheeseburgers.

I spoke to some former
classmates, who would say,

"Oh, yeah,
he's a chill guy."

Nobody expected this kind
of thing to happen.

Dzhokhar seemed like he was
destined for better things

than detonating bombs
at Boylston Street.

[ Explosion ]

I'm sure,
at one time in his life,

he was a very lovely,
caring young man.

What he turned into,
obviously, was --

We know what he turned into.

He turned into a monster.

On Wednesday, we got our first
really

It was the video
from a surveillance camera

positioned just outside
the Forum restaurant.

Almost everyone turns
in the direction

of the first explosion.

There's one person
who doesn't turn.

There's one person who isn't
surprised by that blast.

♪♪

♪♪

I think people had
tremendous faith

that police
would find the suspects,

but as each day went on,

it was hard to be patient.

Nobody knew
what they were looking for.

Nobody knewwho
were looking for.

♪♪

On Wednesday, April 17th,

we got our firstreally
big break in the case.

I was called into my office
by one of my agents

and he said, "Boss,
take a look at this video."

It was the video
from a surveillance camera

positioned just outside
the Forum restaurant,

overlooking the scene
of the second blast.

♪♪

In the foreground, it's people
in the little forecourt

of the restaurant,

talking, snacking,
having some drinks.

[ Explosion ]

At 2:49, there's a massive
explosion off-camera.

You can actually see everybody
in the Forum video

lurch forward just a little bit
from the shock of the blast.

And then, in unison,
everyone turns to the left.

DesLauriers:
And shortly after, you see
the second bomb detonated.

Right there at the Forum.

There's just an explosion
of white

and everything disappears
for a brief second.

And then, as that subsides,

it's just clouds and dust

[ Camera shutter clicks ]
and carnage unlike anything
you've ever seen.

It was just a horrible,
horrible, horrible sight.

Investigators know, somewhere
in this video, is the bomber.

They just have
to figure out who.

♪♪

We looked at it over
and over and over again.

They're looking for any kind
of anomaly in that video

that shows that one
or two people

are doing something differently
than the rest of the people

who were there
to watch the race.

Chakravarty:
We had dozens of eyes
staring at this video,

trying to track
every single person.

And we played it forward,
we played it backward,

played it in slow motion,

and we could not figure out
who the bomber was.

We realized that,
maybe if we got more information

about that same scene,
at that same time,

it might help us.

And, sure enough,
someone had submitted

a still photo
from across the street

that was pointed
at the exact location

of where the blast occurred

and that photo depicted,
from a different angle,

a man with a white hat,

with a backpack at his feet.

They zero in on him.

"What is this guy doing?"

♪♪

In the video, you can see him

walk into the frame.

You see him with a backpack
on his shoulder.

DesLauriers:
He places that backpack down
on the ground and stands there.

And then, you see him
on a cellphone call

with somebody else
and, about ten seconds later,

you see the concussive effect
of the first bomb

going off down in front
of the finish line.

♪♪

Hughes:
Almost everyone turns
in the direction

of the first explosion.

There's one person
who doesn't turn.

There's one person who isn't
surprised by that blast.

Evans:
He walks away and he gets
about ten feet from them

and, all of a sudden,
this area blows up.

We knew he was
responsible for it.

Suddenly, they're now able
to see the trail.

♪♪

The challenge then became,

"Find out where he came from
in the area."

So we assembledall
from those businesses

to see how far away
we could track that individual

and, sure enough, we find him
coming down Gloucester Street.

That moment,
that was the "Eureka" moment,

shall we say,
in the investigation.

They were able to notice
that he was trailing

an older, sort of stockier guy.

The other person who was
accompanying him on the video

was wearing a black hat,

so we suspected
that the other person

may have been responsible
for the first blast.

♪♪

We knew, at that moment,
that we had our two bombers --

"White Hat" and "Black Hat."

We just didn't know
who they were.

♪♪

♪♪

Gregory:
Noah spent five days
in the hospital, initially.

He wasn't injured anywhere
to the extent that I was

because he was sitting
down on my feet

with his back
up against my shins

when the bomb went off.

I took everything
in the back of the legs,

the torso, and the left hand.

That's what shielded him.

He walked into my room and,
without even missing a beat,

he came up to me
and he just gave me a hug

and he said, "Mommy,
we're gonna be okay, right?"

[ Tearfully ]
I said, "Yeah, Noah.

We're gonna be okay."

It was that moment where I think
I decided to survive...

♪♪

...because I had to give him
exactly what he needed.

♪♪

Tapper:
Here in Boston, President Obama
attended an interfaith service

honoring the victims
of Monday's bombing.

He told the congregation that,

"the spirit of the city
remains undaunted."

If they sought
to intimidate us...

♪♪

...to terrorize us,

to shake us from the values

that make us who we are,
as Americans,

well, it should be
pretty clear by now

that they picked
the wrong city to do it.

♪♪

Now, it is Thursday.

We have the video
of the two bombers,

but we don't know who they are.

For 24 hours, investigators
kept those images a secret,

hoping they could figure out
who they were on their own.

Because of the quality

of the video, we weren't able

to do some kind

of photo recognition

or other way
to identify who they were.

We've talked to victims,
to try to help us

with sketches and descriptions
of the bombers.

None of that has brought us,
really, anywhere.

We knew somebody out there,
members of the American public,

would know who these
two individuals were.

Then the question came,
"Do we put it out

or do we hold onto it?"

There were several schools
of thought there,

one being that we need to hold
onto this video evidence,

to work covertly
behind the scenes

to try to identify
these individuals

and, if we release
the evidence,

it might cause them
to flee.

On the other hand, some of us --
myself included --

felt that this was theonly
to identify these guys quickly.

♪♪

And they likely have more bombs

and what if more bombs
go off in Boston

and we're left holding

this video evidence?

♪♪

But once we obtained

the video evidence
from the Forum restaurant,

word of that leaked
to the media.

They knew that investigators
were looking

for two men
with hats and backpacks.

Well, immediately,
a lot of people started looking

at other photos and videos,
in an attempt to identify

people they thought
were these suspects.

People desperately wanted
to know

who could commit such
a terrible act of violence.

So, ultimately,
what happened was,

the media leaked some photos

of people that were said to be
White Hat and Black Hat.

There were a couple of local
students that had backpacks on,

that were on the front page
ofThe New York Post

and they were not
the perpetrators of this crime.

It was causing kind of
a chaotic, panicked scene

where unsuspecting,
innocent people

were then being vilified
in their communities.

We were really worried that
those people were in danger.

And so, law enforcement
agencies' hand

was kind of forced.

The decision time had come,

as to whether to disclose
the images

of the white hat-
and black-hatted persons.

♪♪

And Director Mueller
decided that

that's what we would do
that Thursday afternoon.

Wedge:
President Obama finished
his speech and left,

was wheels-up
from Logan Airport.

They had a press conference
and they released the photos.

♪♪

Today, we are enlisting
the public's help

to identify the two suspects.

They had these big
poster boards.

♪♪

They had several different
photos of them,

different angles.

DesLauriers:
They are identified
as Suspect 1 and Suspect 2.

They appear to be associated.

Suspect 1
is wearing a dark hat.

Suspect 2 is wearing
a white hat.

They were asking the public
for any information

about who they might be.

No one should
approach them.

No one should attempt
to apprehend them,

except law enforcement.

We were hoping that a citizen

or somebody
who knew these people

would call in and let us know
who we should go after.

Somebody out there knows
these individuals,

as friends, neighbors,
coworkers,

or family members
of the suspects.

I remember just everyone trying
to figure out who they were.

Today, FBI officials
released video and photos

of two male suspects in the
Boston Marathon bombings.

The individuals were seen

walking casually away

from the Boston Marathon

after the bombs went off.

We had so many people
hit the FBI website

in an effort
to see the images

that we essentially
crashed the FBI website.

And that was a critical,
critical moment

in the investigation.

Now there's
an all-out manhunt

for these two suspects.

♪♪

I think police hoped that, when
they released these images,

the public would recognize
these men, call immediately,

and they would arrest
these two suspects.

And that's not what happened.

♪♪

There's always danger.

It was a gamble that law
enforcement had to take

to get these guys.

What we feared
actually happened.

Unfortunately, the bombers
saw themselves on the screen

and they decided to go on to the
next phase of their plans.

♪♪

Our worst nightmare
happened that evening.

Berman:
It was really a night
of sheer mayhem here.

♪♪

Dispatcher:
Officer down.
Officer down.

All units.
Get on it!

McCabe:
We just had a carjacking.

Please help.
Help me, please.

They have guns.

The brothers, of course,

proceeded to embark
on a murderous crime wave.

I think the way it ended

was just as shocking
as the way it began.

♪♪

The FBI
had phone banks set up,

prepared for a massive
wave of calls

that would identify
the two bombers

known only to them
as Black Hat and White Hat.

Tips started coming in.

But, before law enforcement

could do anything
to act on them,

Tamerlan and Dzhokhar Tsarnaev

would gather up a handgun
and a slew of homemade bombs

and head out into Boston,
ready to unleash more terror.

Next, on part 2 of the
Boston Marathon bombing.

Thanks for watching.
Good night.

♪♪