Psycho USABy: Harold Schechter AMERICAS MOST COLD BLOODED! In the horrifying annals of American crime, the infamous names of brutal killers such as Bundy, Dahmer, Gacy, and Berkowitz are writ large in the imaginations of a public both horrified and hypnotized by their monstrous, murderous acts. But for every celebrity psychopath whos gotten ink for spilling blood, theres a bevy of all but forgotten homicidal fiends studding the bloody margins of U. S. history.