Charles "Carl" Panzram (June 28, 1891 – September 5, 1930) was an American serial killer, rapist, arsonist, robber and burglar. In prison confessions and his autobiography, he claimed to have committed 21 murders, most of which could not be corroborated, and over 1,000 acts of sodomy of boys and men. After a series of imprisonments and escapes, he was executed in 1930 for the murder of a prison employee at Leavenworth. Only five victims could be confirmed, though Panzram is suspected to have killed more than 100 men in total in the United States.