Who the hell keeps killing themselves over a girl for twenty years?

"If we continue to pitch him the same way, he'll just keep killing us."

Dogs may get to like me if I keep killing things.

If you keep killing people, eventually the American police may catch us.

"They either have to live together or keep killing each other, and in the long run there is only one outcome."

And we keep killing for the very same reasons, even today.

Keep killing all those found in arms or not useful.

Even when he was dead, I kept killing him.

"But we kept killing more of them," protested the other man.

The killer had to keep killing to cover up each death.