madman

Now he couldn’t help but wonder who exactly was on the other side of his trades—what madman would be selling him so much insurance on bonds he had handpicked to explode?

“If there is any madman who wants war, he should be put in a straitjacket!”

Almost always described as a “disappointed job seeker,” Guiteau was a madman, and Mr. Macfadyen’s portrayal is of both man and madness.

If there were a way to ensure that train travelers wouldn’t become the victims of the murderous rampage of a madman like Mr. Ferguson, somebody would have come up with it by now.

One could never tell when a chain-saw-wielding madman was about to jump out from behind a wall.