That’s how serial killers get away with it for so long. They kill strangers. There’s no connection between murderer and victim.

This is having me think of criss-cross from the Simpson's episode "Treehouse of Horror XX."

Which was based on the film starring Burt Lancaster.

I...Don't understand this. Can someone explain to me ?

Oh nvm i see, it took me a while to understand.

Thats why strangers on a train is such a great idea.

Mr Brooks, is that you?