Castle, Season 4

Ryan:
I'm telling you, that guy was dead.

Esposito:
Remind me never to choke on a chicken bone in front of you.

Ryan:
Hey, you checked that guy! So did the paramedics.

Beckett:
Whoa, you guys! I'm sure that there's a medical explanation for it.

Castle:
Oh, there's an explanation, alright.

Beckett:
Besides that one.

Castle:
Come on, you were there, you saw it. He rose from the dead.

Beckett:
He didn't rise from the dead, Castle. He wasn't dead in the first place.

Esposito:
He's not a zombie, Castle. He's just a murderer.

Castle:
Well, then, what was his motive for murder, Detective Esposito? Kyle sold insurance. He had no criminal record. There's no evidence he even knew our victim.

Beckett:
He's a human killer, with a human motive

Castle:
Or he's a zombie killer, with a zombie motive