Remember what I was telling you about a possible serial killer?

The story revolves around the ticket inspectors, riders, and a possible killer.

Then he nipped a possible serial killer's career in the bud and became the golden boy.

But you might, if you want to, mention Eddie as a possible killer.

His mother believed he had been murdered, and rumors circulated about possible killers.

They said they first had to rule out many other possible killers.

Some here also speculate about a possible serial killer in their midst.

We weren't sure if he was a possible killer or the best agent in the Bureau.

If she's a possible killer, the public needs to know.

But it seems to narrow down to two distinct groups of possible killers.