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[female reporter] Chilling new details in the fatal stabbings

of four University of Idaho students.

[male reporter] Tonight, a suspect is still at large.

[narrator] A story that rocks the nation.

[narrator] A story that rocks the nation.

The town of Moscow is terrified.

[narrator] Four students dead in 16 minutes.

This is something that I can guarantee

none of them have ever seen before.

[Caitlyn Becker] Brutal, grisly crime scene.

What kind of monster would do this?

[narrator] For the first time, tonight,

we will hear new theories on the motive.

Whoever did this, understood the sexual element to the crime.

Carefully planned, carefully executed.

He just thinks he's the smartest person in the room

and he's never going to get caught.

[narrator] Some of the nation's top criminal minds

take you inside the case like never before

to answer the question on everyone's mind.

Why?

Why?

[people chattering]

[laughing]

-[server] 72! -[man] Thank you very much.

-[server] You have a nice night. -[man] You too.

[Jean Casarez] Think about yourself in college.

[chattering and laughing]

Your whole life is ahead of you.

Your whole life is ahead of you.

You're excited. You have goals. You're working hard.

[Sally Krutzig] The University of Idaho

is one of the largest schools here in Idaho.

They have the Vandals football which everyone loves.

They have a big, you know, Greek life

where everybody goes and parties on the weekends.

[Matt Loveless] It's your community of 18 to 22-year-olds

and there's a lot of freedom in that.

[bell tolling]

[siren wailing]

Police in Moscow, Idaho, get a 911 call

for an unconscious person.

Police show up at this house.

Three-story, six-bedroom home

on King Road,

steps from off-campus

just a few blocks from fraternity and sorority row.

[Casarez] Police enter the house from the front door.

They walk up one level

and they find the first body.

And there is blood everywhere.

[Becker] It's on the floor with visible stab wounds.

She's deceased.

They walk over and go to the bed,

and in bed, there is a second body.

and in bed, there is a second body.

Now, this is the body of a male.

Cops say he was found dead

with what looked like sharp forced injuries.

[Casarez] And then they go up to the third floor

and they find two females in one bedroom

and they both have been stabbed to death.

We are hearing reports

that there was so much blood in the home

that some of it actually dripped through the walls

that some of it actually dripped through the walls

onto the outside.

[Becker] There are two survivors.

Two female roommates

are left completely unharmed in this house.

And the 911 call came in from one of their phones,

so our first question is how... how did they survive this?

This is a massive, massive crime scene

with four different victims.

Xana Kernodle was the first victim that police found.

She's 20 years old.

Friends are describing her like she is pure sunshine.

I love you so much, Xana,

and I hope you're feeling the most happy, content

and loved in heaven right now.

[Jordan Smith] My sister and I went to school here together

and my sister knew Xana really well.

My sister told me that Xana would light up a room,

that she was just the most bubbly,

that she was just the most bubbly,

happy person that you would ever come across.

[Casarez] She was a marketing major.

She was dating Ethan.

They were the life of the party.

[Becker] In the room with her is her boyfriend, Ethan Chapin.

He's also 20 years old.

He was in the Sigma Chi fraternity.

He was just an outgoing, likeable kid

and who was a triplet here on campus.

He had two other siblings going to school here at the same time.

He had two other siblings going to school here at the same time.

If everybody was like Ethan Chapin in this world,

it would be a better place.

For sure.

[Becker] Ethan was majoring in something

that he wanted to do with sports and recreation.

He was the kid that friends described as

always having a smile on his face,

always a good time.

[Krutzig] 21-year-old students Kaylee Goncalves and Maddie Mogen.

[Steve] These girls were absolutely beautiful.

They have been friends since sixth grade.

They went to high school together.

Then they started looking at colleges.

They came here together.

And in the end, they died together.

Didn't even do their chores today.

Let's just do a wine night.

Get out of here. You seriously gotta get out of here.

♪ It's in the moments where I♪

♪ Think that I'm better alone♪

♪ And disappear right after the song♪

♪ And disappear right after the song♪

I watched their TikToks of them dancing around

the very house that they would be killed in

and it's chilling.

Kaylee was just about to graduate that semester in December.

She was hoping to be an elementary school teacher.

[Becker] Maddie is a marketing major.

...failed two of 'em already!

[Becker] She and Xana work together

at a restaurant in town called the Mad Greek.

at a restaurant in town called the Mad Greek.

They're all in sororities.

These are just quintessential college students

just enjoying themselves.

[man] Yeah, this table would be sick for beer die.

And here's the irony.

Kaylee had already moved out of that house.

She just happened to be at the house that night.

[Krutzig] Kaylee had come back just for that weekend

'cause she wanted to show Maddie her new car she got.

[Smith] The house here is nestled into, kind of,

this apartment complex village.

A lot of off-campus students live in this area.

Really densely-populated area.

And, kind of, in this cove area,

you can definitely hear a lot of what's going on.

[Becker] Law enforcement is describing this scene

as one of the most gruesome and bloody

that they have ever encountered.

that they have ever encountered.

We learned that these four victims were stabbed to death

in the upper-body torso area here

and at least one of them had defensive wounds.

We believe this was an isolated, targeted attack on our victims.

We do not have a suspect at this time

and that individual is still out there.

[Krutzig] Police later revealed that there was no forced entry.

[Becker] It sort of leads us to believe that

either the killer knew the home really well,

perhaps had been there, perhaps knew the victims.

One of the biggest questions that we had was

how did the killer get into the home?

There's two ground-level entrances.

There's the sliding glass door on the second level.

And then, right here on the first level,

there's a front door with a keypad lock.

[Becker] The most likely point of entry

[Becker] The most likely point of entry

would've been that sliding glass door

in the back side of the house.

The back of the house is also much darker

and there's a parking area back there

that is just a quick walk in the dark

straight to that door.

This house was known as being a big party house.

It's in a neighborhood right behind Greek Row.

They'd actually had noise complaints in the past

in which police arrived.

in which police arrived.

[Becker] In August,

we see the cops approaching that back sliding glass door.

[door knocking]

[Becker] Kaylee Goncalves comes out,

talks to the cop.

-Hey, guys. -[officer] How are you?

Good, how are you?

-[officer] Good. Is this your place? -Yeah.

Yeah. You know why we're here?

-Uh, I assume noise. -[officer] Noise, yeah.

-Yeah. Yeah. -[officer] Big speaker right there.

-[woman 1] Um... -[woman 2] Uh, we're not--

[Becker] Then Labor Day weekend,

cops are called again to this house.

-[officer] We're just here for a noise complaint. -[woman] Oh, okay.

-[officer] We're just here for a noise complaint. -[woman] Oh, okay.

[Becker] This time,

police can't find one person

who is a renter or resident of this home

to come and answer the noise complaint.

[man] Um, so I just looked for everyone that lived here,

and they are not here right now.

-[officer] No one's here that... -No one's here.

-[officer] ...that lives here at all? -No one's here that live...

[Becker] None of the tenants are here...

[man] Well no one's...

[Becker] ...but the party is still in full swing.

[Krutzig] This is a house with a lot of people who have access to it,

even when the women aren't even there.

[officer banging on the door]

[officer banging on the door]

Police start gathering information

and are able to put together a timeline

of what happened the night of the murders.

At 8.57 p.m.,

Kaylee Goncalves posts this photo.

It's a chilling image.

You see Kaylee there smiling,

Madi is perched on her shoulders,

Ethan has his arm hooked around his girlfriend, Xana,

all four of the victims together

all four of the victims together

earlier that day.

Later that day, they kinda splintered off.

[Krutzig] Xana and Ethan

are seen at the Sigma Chi house

from about 9.00 p.m. to 1.45 a.m.

Then, about 1.45 a.m.,

Ethan and Xana returned to the house,

Ethan was planning to spend the night.

[Becker] Meanwhile, Kaylee and Madi headed out

to a local bar called the Corner Club.

1.30 rolls around, they head out,

1.30 rolls around, they head out,

and they go to a popular

night time food stop called the Grub Truck,

where they pick up some pasta.

And we see them on this Twitch video

acting like college girls,

they're on their phone, they're laughing.

They take a private car service.

By 2.00 a.m., they're home.

The two surviving roommates

The two surviving roommates

who were in this house at the time of murders

are going to become crucial for police

when they wanna put together

a timeline of events that night.

Now, the one roommate,

her room was on that ground floor

in the front of the house.

The second roommate,

her room was next to Xana's on the second floor.

And what she heard and saw

was absolutely terrifying.

The surviving roommate...

...was woken up...

...she thinks about four o'clock in the morning,

and she thought she heard Kaylee playing with her dog.

The surviving roommate

also thinks she hears Kaylee's voice,

saying, "Somebody is here."

So she looks out her door on the second floor,

she doesn't see anybody, so she goes back in her room,

she doesn't see anybody, so she goes back in her room,

but then she believes

she hears some faint crying...

...and a voice saying, "It's okay.

I'm here to help you."

[Becker] A second time she opens the door,

she peeks out, doesn't see anything,

closes the door, gets back in bed.

Then she opens the door a third time,

and what she sees

and what she sees

shakes her to her core.

[Casarez] The surviving roommate

opens her door,

and she sees a man

walking toward her, dressed all in black,

with a black mask on,

it appeared to be athletic,

and had bushy eyebrows.

She says she froze...

...and he walked right past her...

...and he walked right past her...

...toward the sliding glass door

that you can get out of the home

on the second floor.

[Becker] She shuts the door, locks herself in,

and police, at this point, assume he left the scene.

Knowing that the perpetrator

was heard by one of the housemates

to be almost consoling or comforting

and saying, "It's okay.

Don't worry, I'm here to help you,"

goes beyond betrayal.

It's a mind [bleep] to the victim

that the perpetrator is getting off on.

[Smith] At 4.17 a.m., a security camera on a home

about 50 feet away from Ethan and Xana's bedroom,

uh, picked up distorted audio of what appeared to be

whimpers or, or potentially voices,

and then shortly after that there was a loud thud.

and then shortly after that there was a loud thud.

And then a dog could be heard barking multiple times.

[Becker] Based on cellphone data,

the surviving roommate's accounting,

police are narrowing down the timeline for the murders

to between 4.00 a.m. and 4.25 a.m.

We also learn from cellphone data

that Xana got a DoorDash delivery

at four o'clock in the morning

pretty much on the button.

Then her phone reports that

Then her phone reports that

she was on TikTok at 4.12 a.m.

[Alina Burroughs] Investigators on the scene process a second time,

and they see something that gives them an idea,

they find a latent shoe track.

The term laten means that it's not readily visible to the eye.

So investigators have an arsenal of chemicals available to them

that they can use to enhance something

that they can use to enhance something

and bring about more detail.

[Becker] It shows a pattern, a diamond pattern similar to a Vans.

[Burroughs] It's critical, this track will be matched back

to a shoe that our suspect has worn.

[Becker] This story starts to captivate the nation,

multiple victims,

two survivors,

in a college town,

you can't look away.

[female reporter] With a killer on the loose,

[female reporter] With a killer on the loose,

police of Moscow, Idaho, trying to calm a community on edge.

This stuff doesn't happen here.

In some ways, this took our innocence.

We're 100 feet away,

you know, how close was this person?

Are they still around?

Like, we're, I don't know, it's, it's so scary.

[Becker] The town of Moscow is terrified.

[woman] I've walked at night in Moscow, and I haven't worried,

but this is gonna flip a lot of that upside down.

but this is gonna flip a lot of that upside down.

The fact that they didn't have suspect, they didn't have a weapon,

clearly the prevailing thought was that

there was a killer on the loose.

[female reporter] How can you say it's a targeted attack

if, um, you don't have a suspect?

At this time, I'm not gonna expand up on that.

About 48 hours later,

police revealed that it was a fixed blade knife.

Police don't find the murder weapon at the crime scene,

but they do find a leather knife sheath.

but they do find a leather knife sheath.

[Becker] A knife sheath

was found on the bed

to the right side of Madison Mogen's body.

It is a KA-BAR-style knife,

which is essentially a military knife,

there is a Marine Corps insignia

stamped on the sheath,

it's a leather sheath.

If the murder weapon matches this sheath,

which we are assuming that it does,

it means that this was not a weapon of opportunity,

this was a weapon that they brought with them,

this was a weapon that they brought with them,

that means they prepared for this.

Idaho State Police forensic team

gets a full male DNA profile

off of the knife sheath's textured snap.

This particular sheath is, is newer,

so it requires more pressure for me

to close the snap and open the snap.

All of that contact

is creating more chance

of leaving behind DNA.

Investigators take this and enter it

into CODIS, the Combined Offender DNA Indexing System,

which is basically a database of felons,

but they don't get a result.

[Smith] The question that kept coming up over and over again was,

"Was this a targeted attack? And if so, who is the target?"

There was a theory that the suspect entered from this

sliding glass door here on the second floor,

and that's right next to where Ethan and Xana were sleeping,

and just across the hall from them

and just across the hall from them

is where that survivor roommate was.

But the suspect also went up to the third floor,

where Kaylee and Madi were sleeping.

Since the killer had to go upstairs

and bypass those two downstairs victims,

we assume that one of the girls in that bed

was the intended victim.

Now, you add to that the knife sheath was found up there,

which was likely the point where the killer took

the knife out of the sheath to begin the crime.

[Krutzig] Kaylee's father came out saying,

he believed that Kaylee could've been that target.

He believed that Kaylee's wounds

were more significant

and seemed to be more violent than Madi's.

Now, Kaylee also mentioned that she had a stalker

to friends and family,

and police run this down.

We've heard mention that Kaylee stated

she may have had a stalker.

Detectives have been looking into that

Detectives have been looking into that

and to this point, have been unable to corroborate the statement.

Shortly after the crimes happened,

law enforcement did video canvassing.

They were looking for surveillance video

anywhere they could find it.

This white car was spotted

at the home

in the vicinity of the time of the murders.

[Becker] The reason this white sedan sticks out is

because it traveled in a pretty unusual pattern that night.

because it traveled in a pretty unusual pattern that night.

[Smith] So we're turning here onto King Road

where at 3:29 AM on that morning,

surveillance cameras on houses nearby

picked up this white car that made three passes in front of the house...

...and then came back a fourth time at 4:04 AM.

And the car drives and stops in front of this apartment complex

And the car drives and stops in front of this apartment complex

before turning around and making another pass by the house.

And when that car gets to the house,

it attempts to park or turn around in the road.

And then that car comes to this intersection, makes a three-point turn...

...and then heads back down the road where that house is.

And from what we understand,

that was the last time that white car was seen on those security cameras

until 16 minutes later when it's seen leaving the area

at a high rate of speed at 4:20 AM.

Now we're narrowing the timeline down even more

from between 4:04 AM and 4:20 AM.

That's 16 minutes.

Sixteen minutes to claim four lives.

Sixteen minutes to claim four lives.

That's almost unbelievable.

The person who entered this home to commit these crimes

very likely knew exactly where they were going within the house.

Sixteen minutes is a long time.

You need to ensure that you... you give fatal wounds

as quickly as possible and get out.

To me it was a lifetime.

Eight, ten minutes in that house

is an eternity for a killer with a big weapon.

Police take the video footage of this white vehicle

Police take the video footage of this white vehicle

and they give it to FBI forensics examinators,

and they come back with a make and model.

It's likely a 2011 to 2016 white Hyundai Elantra.

[Krutzig] Police begin scouring town for video of this car.

What they see is the car matching this description

leave Pullman, Washington, at about 3 AM.

This is a town just 15 minutes away.

Another college town where Washington State University is located.

Another college town where Washington State University is located.

[Loveless] Moscow and Pullman are a hyphenated community.

We sort of exist together.

[Becker] Two huge college towns in very close vicinity.

This car seems consistent

with the exact same white sedan, that police saw on camera

driving around the house, around the murders.

Police release a BOLO, which is a "be on the lookout"

Police release a BOLO, which is a "be on the lookout"

for this white Hyundai Elantra to all of the local precincts.

Little did the public know...

...that two weeks later, they found one.

[Becker] Two officers for Washington State University Police Department,

they spot a white Hyundai Elantra on campus.

Law enforcement runs the tags.

It belongs to a 28-year-old student at Washington State University, Bryan Kohberger.

It belongs to a 28-year-old student at Washington State University, Bryan Kohberger.

So when they pull up Kohberger's driver's license,

what they see is a tall man, 185 pounds,

and, most notably, he has these bushy eyebrows.

That description is almost an exact match

to what the surviving roommate said she saw in the house.

Within two weeks of the murders,

police are running down information about this Bryan Kohberger.

They learn that he's a PhD student

at Washington State University, studying criminology.

And that he lives off campus

just eight miles from where the murders took place.

He's also a teaching assistant in the criminology department.

This is a person who interacts

with undergraduate students on a daily basis.

with undergraduate students on a daily basis.

[Becker] And that's not all.

Bryan Kohberger holds an undergraduate degree

in psychology and cloud-based forensics from DeSales University.

He got his master's degree in 2022 in criminology.

[announcer] Ryan Kohberger.

It's really chilling to take a look at this survey that Bryan was conducting,

It's really chilling to take a look at this survey that Bryan was conducting,

you know, while getting a degree at DeSales.

He was administering a survey,

to people that had been formerly incarcerated.

He was asking them to talk about their thought process,

their planning process,

before, during, after their crime.

It really indicates to me

that Bryan Kohberger was being very enthusiastic

about getting inside the mind of criminals.

While he was at DeSales University,

he studies under this renowned expert in serial killers,

he studies under this renowned expert in serial killers,

Katherine Ramsland.

She quite literally wrote the book on the BTK Killer.

For me it was advancing criminology,

making a contribution to my field

and forensic psychology.

[Becker] It seemed Kohberger had every intention

of a career in law enforcement.

He actually applied for an internship

with the Pullman Police Department in the fall of 2022.

with the Pullman Police Department in the fall of 2022.

And in his criminology classes,

of course they're going to talk

about this gruesome quadruple homicide not 10 miles away.

[Krutzig] He was often very talkative.

That kind of person who would sit front and center.

But then after the murders,

whenever the subject of the killings came up.

He would suddenly get very quiet.

They noticed he started to come to class

They noticed he started to come to class

looking more disheveled, rough around the edges and worn down.

[Becker] Kohberger's not from the Washington or Idaho area,

he actually grew up in eastern Pennsylvania, near the Poconos.

[Krutzig] His dad was a maintenance worker,

his mom worked for the local school system.

[Becker] He's one of three, he's got two sisters.

Back in high school,

Kohberger was described as being pretty overweight and that he was bullied.

And that sometime between his junior and his senior year

And that sometime between his junior and his senior year

he dropped, like, a 100 pounds

and there was a switch in his personality

when suddenly he kind of became the bully.

So we're a month out from these murders,

and the public is terrified.

[Loveless] We didn't know that police were following

[Loveless] We didn't know that police were following

this trail of breadcrumbs throughout this case.

Police believe this crime took place between 4:04 and 4:20 AM,

just 16 minutes.

[Krutzig] They're honing in on Kohberger.

They start looking into his phone records.

[Becker] The cellphone data from Bryan Kohberger's phone comes back,

and it shows them on the night of the murders

his phone is kind of near his apartment,

at about 2:42 in the morning,

and then it is travelling towards Moscow.

and then it is travelling towards Moscow.

But at 2:47, the phone goes completely offline.

It just vanishes.

And police believe that he either turned his phone off,

or put it in airplane mode,

in an effort to conceal his location.

Then the phone doesn't ping a cellphone tower until 4:48 AM.

And it pings a tower located south of Moscow.

[Krutzig] When it comes back on the network...

[Krutzig] When it comes back on the network...

...police see that Kohberger's phone is driving in this kind of odd, round about direction

about an hour outside of Pullman, in Washington.

[Becker] What should've been a 10 minute ride,

turns into an hour round about drive

where the phone is mostly off.

What is he doing?

[Krutzig] On the morning after the murders,

Bryan Kohberger's phone

appears near the scene of the crime again

between 9:12 AM and 9:21 AM.,

between 9:12 AM and 9:21 AM.,

It does make you wonder, why did he return to that house

for nine minutes on that particular day?

[Dr. Casey Jordan] So for the perpetrator to come back,

and we know they do this, of course they love to revisit the scene of the crime,

but not four hours later.

Four hours later is ridiculously high risk.

[Becker] So just five days after the murder,

[Becker] So just five days after the murder,

records show that Kohberger gets a new license plate.

He registers his car in Washington state.

Before he had Pennsylvania plates.

Interestingly, in Pennsylvania,

you don't need a front license plate.

And the car they saw driving past the crime scene

didn't have a front license plate.

[Becker] At this point, cops announce wide

that they are searching for a white Hyundai Elantra.

[Krutzig] On December 13th, a license plate reader picks up

that new Washington license plate in Loma, Colorado.

[Becker] Then two days later,

there's a traffic stop in Indiana.

Kohberger's car is stopped by police for tailgating.

[officer] Hello!

[Becker] On December 15th, Kohberger is pulled over while being in Indiana.

[Krutzig] Bryan Kohberger was driving with his father.

[Krutzig] Bryan Kohberger was driving with his father.

Kohberger and his father had already prearranged a trip.

His father had planned to fly out to Washington from Pennsylvania

and drive with Kohberger back to Pennsylvania for Christmas.

[Krutzig] The officer lets him off with a warning.

[Burroughs] Nine minutes later, they are pulled over a second time.

[Burroughs] Nine minutes later, they are pulled over a second time.

For the same reason. Following too closely.

[indistinct radio chatter]

[deputy] How you doing, sir?

[Burroughs] They are let off a second time with a verbal warning.

[Krutzig] They take this cross-country road trip 2,500 miles away

to Albrightsville, Pennsylvania.

The whole trip took about two and a half days.

The whole trip took about two and a half days.

They arrive there around December 16.

A law enforcement source is telling CNN that FBI out of Philadelphia...

...is surveilling Bryan Kohberger for four days.

Pretty much every time Kohberger exits the house,

he's wearing rubber surgical gloves.

They witness him cleaning his white Hyundai Elantra top to bottom.

[Krutzig] Law enforcement sees Bryan Kohberger dispose of some trash.

Investigators pull a piece of DNA.

They send it to the forensics lab. They get it tested.

The trash DNA profile is the genetic father

of the profile developed from the crime scene.

It's Bryan Kohberger's father.

They are so certain that it is Bryan Kohberger's father,

it is 99.999... repeating, percent certain.

it is 99.999... repeating, percent certain.

They believed that was a strong enough match that they could then arrest him.

[Becker] On December 30 at 3 AM,

a SWAT team of 50 law enforcement officers surround this house

a SWAT team of 50 law enforcement officers surround this house

in Albrightsville, Pennsylvania.

Detectives arrested 28-year-old Bryan Christopher Kohberger

on a warrant for murder

of Ethan, Xana, Madison and Kaylee.

[announcer] Breaking News.

A suspect has been arrested in the murders of the four university students...

An arrest in connection to the murders of four University of Idaho students.

An arrest in connection to the murders of four University of Idaho students.

A suspect has been arrested in Pennsylvania.

...in connection with the November murders of four University of Idaho students.

[Becker] Police also impound the white Hyundai Elantra from in front of the house.

It's basically a mobile crime scene.

Four days later, Kohberger makes his first court appearance in Pennsylvania.

-[reporter] Hey, Bryan. -[reporter 2] Bryan, did you do it?

-[reporter] Hey, Bryan. -[reporter 2] Bryan, did you do it?

-[reporter 3] How you feeling? -[reporter 2] Bryan, did you do it?

[reporter] How you feeling, Bryan?

[reporter 2] Bryan, did you do it?

[reporter 3] Are you ready to go to Idaho?

[reporter 2] Bryan, did you do it?

[Casarez] The judge said, you have been charged with four counts of first degree murder.

And by waiving extradition, you are going back to Idaho to face those charges.

[Krutzig] And the whole newsroom was watching Kohberger's flight

from Pennsylvania to Moscow, Idaho.

[Becker] So now, Bryan Kohberger makes his first court appearance in Idaho.

He does not enter any kind of plea.

The same day Kohberger is arrested,

quite a few things are taken out by the forensics team from Kohberger's apartment.

From the search warrant returns, we know they've collected some dark clothing,

From the search warrant returns, we know they've collected some dark clothing,

uh, a nitro glove. Bedding.

And, interestingly enough, an animal hair.

Kaylee had a dog, and we know that dog was awake,

because neighbors hear barking. It's at least caught on surveillance.

[Becker] They took two cuttings from an uncased pillow of reddish-brown stain.

They took parts of a mattress cover that had stains on it, as well.

We have the DNA, the surveillance footage, the cell phone data,

We have the DNA, the surveillance footage, the cell phone data,

and all those other little pieces that certainly look like

the prosecution has a very strong case.

[Becker] We also learned that Kohberger's phone pinged from the area of the house

12 times between June and the day of the killings.

[Burroughs] You see that this person is for 12 times before the attack,

in that neighborhood at very odd hours.

The question we all have is, why did he do it?

Why these young people? Why the number? What is the motive?

I feel unsafe. Sorry, I am just almost on the verge of tears,

because it's such, such a, it has such a bad impact on me.

[Becker] When they executed that search warrant on his home and his office

in Pullman, Washington, they were specifically looking for anything

in Pullman, Washington, they were specifically looking for anything

that he could have been looking into to plan the crime,

and any ways he could have been connected to some or all of these victims.

Any kind of digital trail that they could possibly find.

[Burroughs] Was he stalking any of these particular victims?

Following on social media? Sending any type of messages?

Uh, visiting them at places of employment?

We'd also be looking for online searches for the murder weapon,

We'd also be looking for online searches for the murder weapon,

receipts of purchase for a murder weapon.

The digital forensics is also going to be really key in this case.

I believe that whoever did this did it to see if he could feel anything.

Yes, it's about violence.

It's about the thrill of seeing how you feel as you take lives

in such a, a horrible, macabre way.

Motive is certainly something that everybody wants, as human beings.

Because we want to understand why someone is capable of this.

Because we want to understand why someone is capable of this.

[Becker] We're gonna learn a ton of information at this next prelim hearing.

We're gonna learn about this case from soup to nuts.

Everything that investigators have. And they're still investigating this case.

[Nicolazzi] We don't know what if any defense they will put forth.

The obvious one is all the people that have access to this home.

[music playing]

[indistinct chatter]

That is a home that is known as the house if you want a good party, for years.

That is a home that is known as the house if you want a good party, for years.

So there is people in and out.

Who lives here who's here?

-[party guest] Um, I can go get them real quick. -Okay.

How do you know without any reasonable doubt that it's him in that house?

And it only matters what was happening inside that house

on that night in the early morning hours.

There are still a lot of unanswered questions.

Where is the murder weapon? How did he enter the home?

Why did he choose these victims?

All of these things may come out between now and the trial.

All of these things may come out between now and the trial.

But some of these answers, we may never get.

Guys, I met Charli D'Amelio. Check!

[TikTok music plays]

[Nicolazzi] They are college students. They were home.

They're supposed to just be living

this carefree, hopefully working hard in school, life.

Oh, Lord. [laughing]

They are at the beginning of the adult road

of what should have been a very long life.

And I really think all the video and what we know about their last night,

And I really think all the video and what we know about their last night,

they're at parties, they're at a food truck.

[indistinct chatter, laughter]

They're watching social media. They're with one another.

♪ Last night I told ya I loved ya♪

Got this off the website.

[TikTok audio] ...with both direction and magnitude. Oh, yeah!

It just talks about this vibrancy in each of their lives that was just...

...unbelievably cut short. I mean, within minutes.

Not one, not two, but four lives taken.

[shuddering breath]

[sniffles]

[Kristi Goncalves] She was a beautiful girl.

Xana, you will not be forgotten.

You have impacted so many lives, and have given people so much love.

Madi was my best friend.

[sniffles]

She was the first person I talked to every morning.

And the last person I talked to before bed.

I love you so much, E and Xana.

[Smith] It's hard. Yeah.

I think it's really telling how much these people

meant to the community, and how, I mean...

...just how devastating this is for so many people, and just...

...hard to put into words.