One of the first serial killers recorded in the historical archive (circa 144 BCE), Pengli was the grandson and nephew of Emperors and, obviously, the very black sheep of the family. He went on marauding expeditions with slaves to steal and murder. He killed more than 100 people until he was publicly accused and brought before his uncle, The Emperor Jing. Court officials requested that he be executed for his crimes, but the Emperor didn't have the heart to carry out the sentence and instead made him a commoner and banished him. Liu Pengli certainly got away with murder.