The last serial killer had killed six kids before he was caught.

I had to make sure that the killer would kill no more.

"The killer killed the woman first, then tied her up."

When killers kill each other, they're the ones who usually lose.

But until then the killer hadn't killed, so he had another purpose in the visit.

And then the killer, realizing he would soon be exposed, had killed King.

Or why the killer is killing the five of you?

The judge predicted that the killer would kill again if he was ever released.

Criminologists still know little about what makes these killers kill.

But they must be told that this killer can kill them.