Ken McElroy was killed outside, in broad daylight, with some 60 witnesses watching -- and yet no one copped to having seen a thing. McElroy, who'd long been known as a town bully in Skidmore, Missouri, was shot dead in 1981 after terrorizing his neighbors, two of whom he shot. When the system seemed to fail at holding McElroy accountable, townsfolk took matters into their own hands.