Richard Ramirez Ramirez terrorized the L.A. area for over a year in the 1980s with a series of home invasion murders that became known as "The Night Stalker" killings.
EnronEnron executives lied about corporate profits for years, eventually selling their stock before the bubble burst thanks to insider information in 2001. While Kenneth Lay and Jeffrey Skilling didn't kill anyone, they did ruin a lot of lives.
Leopold and LoebNathan Leopold and Richard Loeb killed a teenage boy in Chicago in the 1924 to prove they were capable of committing the perfect murder. They were later arrested and imprisoned -- proving that they weren't.
Patty HearstPatty Hearst, the granddaughter of publishing magnate William Randolph Hearst, was kidnapped by a leftist group in the 1974 and was eventually brainwashed into committing bank robberies on their behalf.