Dubbed "The Railroad Killer," a man hops trains to his victims' homes, bludgeoning them, helping himself to their food — and evading police for years.

In the '90s, a killer in New York selects his victims based on their birth signs. Can the cops catch him before he attacks all 12 symbols of the zodiac?

In 2002, a sniper shoots six victims in a Washington suburb, linking him to a spree that resulted in one of the largest manhunts in American history.