David Richard Berkowitz (born June 1, 1953), also known as Son of Sam and the .44 Caliber Killer, is an American serial killer and arsonist whose crimes had terrorized New York City for a year.
Shortly after his arrest in August 1977, Berkowitz confessed to killing six people and wounding seven others in the course of eight shootings in New York between 1976 and 1977; he has been imprisoned for these crimes since 1977. Berkowitz subsequently claimed that he was commanded to kill by a demon who possessed his neighbor's dog.
Berkowitz later amended his confession to claim he was the shooter in only two incidents, personally killing three people and wounding a fourth. The other victims were killed, Berkowitz claimed, by members of a violent Satanic cult of which he was a member. Though he remains the only person charged with or convicted of the shootings, some law enforcement authorities argue that Berkowitz's claims are credible: according to John Hockenberry formerly of MSNBC, many officials involved in the original "Son of Sam" case suspected that more than one person was committing the murders. Hockenberry also reported that the Son of Sam case was reopened in 1996 and, as of 2004, it was still considered open.