Original subtitles

[scoffs]

[suspenseful chord strike]

MAN: There's this thing inside of me, it's like...

the appetite.

It's like a wolf that's...

filling...the hunger.

♪♪

[police sirens wailing]

[distant siren wailing]

OFFICER: Okay.

One of the things that strikes me is

the rapid nature of his a shift of mood.

So it kind of goes into what we call

shallow affect or shallowness

of the emotional expression.

MORGAN: This is bizarre.

What this behavior is is sussing out or exploring.

What do the police know?

So that he will then know what to expect

and how to angle what he's going to do next.

Daniel's appeal to God can be seen as

kind of an attempt to be seen positively.

If people view him as a spiritual or religious figure,

that they might be more forgiving of his sins.

It's an attempt at manipulation.

MORGAN: This is a continuation of the performance.

He's really quite sharp about what he's doing.

I think he...

it could be a genuine expression of hope

that maybe his dad doesn't die,

but I don't think so.

♪♪

♪♪

♪♪

♪♪

What he's doing here is very calculated.

He is providing a reason

that might explain why his fingerprints

will be found on the gun.

And he makes it even sound like it was a gesture

of kindness.

But no, he's plotting an alibi.

♪♪

MORGAN: It's just this absolute indifference

to the whole situation he's in.

He is entirely self-absorbed,

and there's no emotional involvement in this tragedy

he's supposed to be experiencing.

♪♪

Mm-hmm.

KATSAVDAKIS: The video game is not what's significant.

What's significant is his parents, in his perception,

are intentionally

and motivated to prevent him from reaching a goal.

And that is what increases

the level of anger and subsequent aggression.

MORGAN: The video game is definitely a fantasy world.

This is absorbing to him. This is his world.

Invasion narratives are about the other that's coming in

either to threaten or take over something,

and you get to fight back and ward them off and overcome

and win, so this is about power.

♪♪

MORGAN: I don't buy it at all -- this is the story

he's decided he's going to tell.

He's trying to sound emotionally upset.

Well, kind of half-covering, covering his face for it,

but the dynamic he's setting up is that he is a victim

in all of this.

We see him attributing to the father his own

aggression and blaming the father because he resents

his father.

I think the emotion and the story are

absolutely calculated -- this is his alibi.

KATSAVDAKIS: His change in body language is very interesting.

He has his left hand toward his brow to indicate that

he's crying, looking with his left eye

to see what the detective is doing.

MORGAN: There's the element of psychopathy,

someone who apparently

doesn't really have empathy.

It looks like he is angling and conniving and planning

and checking out what he needs to say and what he won't say

so he can figure out what will be best for him.

So people who are psychopaths, they can put on a mask

and appear as normal as possible to other people.

He doesn't care about the police officers,

but he is probing.

What's clear, no matter what we read into his specific

comments, is that he is not behaving like a normal person.

He's not having the basic emotions of fear,

anxiety, loss, and concern about family.

♪♪

Okay.

♪♪

♪♪

[dinging noise]

Okay?

He's trying to think of reasons -- I've spun

the religious reason, I've spun the I don't know what happened

reason I've spun my father did this reason.

I think we're on the sixth different narrative at

this point, but he did not snap.

The literature and the science has been very,

very clear that people don't snap.

If you scratch below the surface

in many of these instances, there are many clues.

Long-term anger, possible depression,

inconsistency within parents,

high control, low empathy.

There's always signs.

♪♪

♪♪

MAN: Reverend Mark Petric takes the stand in

the trial of his 17-year-old son, Daniel.

Prosecutors say in October of last year,

the teenager shot his father and shot and killed his mother,

Sue Petric,

in the living room of their Wellington home.

MORGAN: The line that the father tells us,

I think there is an element of sadistic pleasure in doing it.

It does come within the context of an adolescent

who I suspect for a while has felt enraged

living in the home under the rules from the parents.

♪♪

MAN: Mark Petric of Wellington believes his son's addiction

to a violent video game

is what caused him to shoot both his parents

after they took the game away.

He got involved in the violent graphic video games

and became addicted to them

and was playing as much as 18 hours a day.

♪♪

♪♪

MORGAN: If you're growing up in a household where you realize

the rules are very strict,

it can produce a sort of split sense in kids growing up.

Some children may discover they have to be duplicitous.

You have to be able to say yes to get along with

everybody because those are the rules while then secretly

doing something else.

Where this can then move into the psychopathy range is that

they can develop a genuine

lack of empathy for the people they have to live around

but can no longer relate to.

Being involved in the gaming

meant something very important to him

emotionally in the fantasy he could engage in.

KATSAVDAKIS: The video game in and of itself is

not the cause or the factor to a homicide.

However, it feeds the fantasy that this violence is

actually a feasible and reasonable solution

to my grievance.

♪♪

♪♪

♪♪

WOMAN: Despite the shooting, Daniel Petric's family,

including his father, says they forgive him.

♪♪