Original subtitles

- MAN: You murdered this man? - Yes.

- You tortured him. - Of course.

If you had that moment to live over again...

I'd have kept him alive a week.

But you would have still tortured him

- and killed him. - Oh, I'd have tortured him

for a week, yeah, instead of three days, definitely.

You believe him? Do you think he really was a snitch?

Oops if he wasn't.

MAN: Are you remorseful?

- Not at all. - Why?

Why would I be?

What's the difference?

Everybody has a reason to kill.

The thing inside of me, it's like

the appetite -- it's like a wolf that's...

feeling the hunger.

WOMAN: Around five a.m.,

Phoenix firefighters responded to a fire on

the church's property -- while putting it out,

they noticed a badly charred body in a container.

Detectives now say the victim was a white man, 46 years old.

There's a level of violence and sadism

to the crime, and the level of overkill,

the level of torture, that this victim likely experienced tells

us this is somebody we're dealing with

who doesn't have any regard for human life.

This is likely somebody who either had

a level of rage or vendetta against the victim.

He used a wheelchair to get around -- whoever killed him

knew that he was vulnerable,

which made him an easier target, and also likely made it

easier for them to overcome him and overpower him.

MORGAN: She's trying to do image management.

She's gonna look really cold,

like hardened person who can kill people.

So she is concerned with how she's gonna be viewed.

There's a narcissistic element to psychopathy, and there's

the control element,

to be in charge, and she's doing both of those things.

DERIGHT: Simpson is confessing to a brutal murder, and it's as

if she couldn't be bothered with anything in the world.

She's sitting there having a snack,

taking a sip of her soda, as she's admitting to it.

She has a very flat affect.

She's not showing changes in the tone

of her voice or her facial expressions.

She's saying it as if she's telling

you what she ate for breakfast that day.

SAHNI: That ability to change who they are, to change how they

approach you, how they present, how they look.

That chameleon skill is very much a marker

of the type of psychopath that navigates

different environments.

They're able to lure victims in

by studying them, learning what it is

that's gonna be the hook for that individual.

She likely would have been more flirtatious, more cunning,

which is what allowed him to trust her and go with her.

And that is not likely the person

we're seeing in any of these interviews.

SAHNI: There's no evidence that the victim

ever was an informant.

Simpson sees herself as some kind of a vigilante.

It's her job to decide who lives and who dies.

She is firmly convinced that her view is

the reality and justifies her action.

With psychopaths, once they've made up their minds,

there's this narcissistic approach.

Like I know it all, I know what I'm doing.

I don't second guess myself, because I'm right.

They've decided they know what they're doing.

So she was a little more impulsive in that way.

Simpson seems to think of herself as

on a different level than other people,

such that she believes this person

is so wrong for being a snitch,

she acted on something that she had little basis

for knowing.

She thought this person was a snitch.

It didn't end up being true.

She still has no remorse for it, and she

was so extreme in what she did to this person.

Simpson gets a high off these interviews.

She gets to recount the crime.

She gets to remember the most sensational aspects of

the crime -- by putting a mirror in front of him

and showing him how badly beaten he is,

it's deflating to the victim -- victims start to, at some point,

give up hope,

and when an individual is sadistic, and they need that

high, it banks on the victim fighting,

resisting, showing force and fear.

SAHNI: She's referencing a song,

"Show Me How to Live" by Audioslave.

Her decision to throw this idea out there

that she was following the lyrics of a song

I think is just an impulsive response

to the investigator.

She then clarifies that's not actually the lyric,

it should have been the hand instead of the head.

This has absolutely nothing to do with the crime.

She did impale a three-inch nail into the victim's head,

and I think that was a plain and simple decision

to turn the temperature up on the amount of torture

she subjected the victim to.

People with psychopathic traits are apt to target people

that are weaker or vulnerable, because they're easy

to overtake.

They have a strong sense of knowing when someone is going

to be an easier target, and they will prey on them.

It's likely that she thought that, because of his disability,

he was someone that she could more easily overpower

and kill, basically.

She -- she wanted to be able to have someone who

she'd be able to take out without a lot of effort.

SAHNI: He was physically disabled.

Her decision to dismember him and cut into even where he had

had knee surgery really just speaks to

this was a science experiment for her.

This was really no different than how a high school student

might dissect an eyeball of an animal,

a cat, a frog.

This is someone who did not see this as a human being.

This was just for her own stimulation

and benefit and her own curiosity, really.

Simpson's description of the victim and his limbs,

as if it's a chicken carcass being

cut up for a roast and for dinner, really speaks to just

how much she dehumanized her victim,

how her relationship with people is 100 percent instrumental.

It was about getting high -- she took that opportunity to

celebrate her kill, and she was proud of what she did.

There's absolutely no doubt about that.

You see that pride in how she recounts what she's done to him.

MORGAN: She gets annoyed when they're asking --

when she has to explain,

did she clean the walls, did she get rid of the carpet?

And she sees all that as irrelevant.

That's tedious. Those are trivial.

Those are non-important to her.

This is the narcissist response in psychopathy to

being asked detailed questions,

because if she thought they were important,

she already mentioned it, and you see the irritability,

because that's the confrontation

between who's running this thing, and so she says,

"That's irrelevant," and she dismisses it.

MORGAN: I think that she knows this is

shocking to the interviewer.

She's trying to make it funny, and nothing's funny about

what she's talking about,

and so we see this is that superficial and glib humor

she's demonstrating -- one impact of the behavior

is that it controls the interviewer's attention.

It's an emotional lure.

It's playing with the interviewer.

The other one is that it projects an image,

that she's beyond feelings of these things

that we all might find horrifying,

which is a superiority view.

Like, I'm beyond the thing that you might find shocking.

DERIGHT: This seems to be another way that --

that she was celebrating.

It was kind of a victory lap with this chair

that he was presumably known by in the community.

So she feels like she won this battle,

did a good thing, and was showing off, essentially.

This is not someone who did

a terrible thing and is trying to evade capture.

This is someone who is literally

riding around town on the wheelchair.

My view of Simpson's dropping breadcrumbs, hints about other

crimes and things, is her way of

not only controlling the interview but controlling

interest, the emotions, of the interviewer.

She's presenting herself as a seasoned and skilled person

who can kill people, so she's an expert,

right, and stuff doesn't bother her, and she's not gonna

get other people involved, because she can do it.

She's done it before, but we're not gonna talk

about that -- it's teasing.

With psychopathic individuals, when they

have a history of animal harm,

it's not surprising that it starts during childhood.

Oftentimes, they start with small animals, such as birds,

squirrels, hamsters,

the family rodent, the family cat, the family dog.

And the significance of starting with small animals

is that they're easy to overtake.

They're easy to overpower.

It's easy to control them.

When Simpson references that she hasn't gotten an elk yet,

that's both a reference to her being a predator and a hunter,

and everyone else that's living being prey.

[laughs]

MAN: Women generally don't commit crimes

- this heinous. - Right.

MAN: You know, this is usually the domain of men.

- That's unfortunate. - You think more women should...

Oh, yeah -- equal opportunity, definitely.

- Will you kill again? - If the opportunity arises?

I hope so.