The Clutter murders for forty dollars
In November 1959 ex-convicts Dick Hickock and Perry Smith invaded Herbert Clutter's farmhouse in Holcomb, Kansas, acting on a cellmate's false tip about a safe full of cash. Finding no safe, they bound and killed Clutter, his wife Bonnie, and teenagers Nancy and Kenyon with a shotgun and knife, leaving with roughly $40, a radio and binoculars. They were caught through that same cellmate's tip to prison authorities, convicted, and hanged in April 1965 after years of appeals.
