Based on the true life serial killer, Henry Lee Lucas.

Store clerk: How about those Bears?
Henry: Fuck the Bears.
Otis: I'd like to kill somebody.
Henry: Say that again.
Otis: I'd like to kill somebody.
Henry: Let's me and you go for a ride, Otis
Becky: I love you, Henry.
Henry: I guess I love you too.
Henry: Otis, plug it in.
Becky: Did you really kill your mama?
Henry: I guess I did.
Becky: How'd it happen?
Henry: I stabbed her.
Becky: Otis said you hit her with a baseball bat.
Henry: Otis said that?
Becky: Yeah.
Henry: Well, he's mistaken.
Becky: Well don't tell him I told you. He made me promise.
[pause]
Becky: She must have treated you real bad.
Henry: She was a whore. My mama was a whore. But I don't fault her for that. It ain't what she done, but how she done it. Long as I can remember, she'd bring men up to the house. My daddy was there too, but it didn't matter none to her. She'd make me watch.
Becky: That's creepy.
Henry: She'd beat me too. A lot. She'd beat me when I wouldn't watch it. And sometimes she'd beat me, and make me wear a dress, and watch her doin' it. Then they'd laugh at me.
Becky: She made you wear a dress?
Henry: You think I'm lyin?
Becky: I feel like I know you, like I've known you for a long time. I feel like I've known you forever and ever.
Henry: Yeah. I killed my mama. One night. It was my 14th birthday. She was drunk, and we had an argument. She hit me with a whiskey bottle. I shot her. I shot her dead.
Becky: I thought you said you stabbed her.
Henry: Oh yeah, that's right, I stabbed her.
Henry: If you shoot someone in the head with a .45 every time you kill somebody, it becomes like your fingerprint, see? But if you strangle one, stab another, and one you cut up, and one you don't, then the police don't know what to do. They think you're four different people. What they really want, what makes their job so much easier, is pattern. What they call a modus operandi. That's Latin. Bet you didn't know any Latin, did you kid?
Otis: Big fucking deal.
Henry: What?
Otis: Nothing.
Henry: It's like a trail of shit, Otis. It's like the blood droppings from a deer you shot, and all they've got to do is follow those droppings, and pretty soon, they're going to find their deer.
Otis: Why don't you use a gun?
Henry: You can use a gun. I'm not saying you can't use a gun. Just don't use the same gun twice.
Henry: Guns are easy to get... I can make a phone call and get a gun. Anybody can get a gun, Otis.
Henry: Don't do that Otis - she's your sister.
Otis: Where you going?
Henry: Nowhere - you wanna come?
Becky: I don't want to talk about Leroy!
Otis: Okay, we don't have to talk about him! You hungry?
Becky: Yeah.
Otis: Good, I'm hungry too. I wonder if Leroy's hungry. (laughs)
Henry: It's always the same and it's always different.
Otis: Adios, motherfucker.