David Richard Berkowitz (born Richard David Falco; June 1, 1953), also known as the Son of Sam and the .44 Caliber Killer, is an American serial killer convicted of a series of shooting attacks that began in the summer of 1976. Perpetrated with a .44 caliber Bulldog revolver, the shootings continued for over a year, leaving six victims dead and seven others wounded. As the toll mounted, Berkowitz eluded a massive police manhunt while leaving brazen letters which promised further murders. Highly publicized in the press, the killings terrorized New York City and achieved worldwide notoriety.