Nathan Leopold was a child prodigy with an IQ of 210. He had a difficult childhood with few friends and was sexually abused by a governess at age 12. He was also a murderer obsessed with committing the “perfect crime.” In 1924, he teamed up with Richard Loeb to murder Loeb’s 14 year old cousin. Despite the obvious premeditation, both avoided the death penalty, and Leopold lived to be released from prison. After prison, Leopold moved to Puerto Rico where he taught mathematics at the University of Puerto Rico. The murder was the inspiration for Alfred Hitchcock’s movie “Rope” (which is one of his best works).