American serial killer David Berkowitz, popularly known as the "Son of Sam", was sentenced to 25-years-to-life in prison for each of six killings.

David Richard Berkowitz, also known as the Son of Sam and the .44 Caliber Killer, is an American serial killer and former U.S. Army soldier who committed a series of stabbings and shootings between 1975 and 1977 in New York City, killing six people and wounding eleven others. Armed with a .44 Special caliber Bulldog revolver during most of his crimes, he terrorized New Yorkers with many letters mocking the police and promising further crimes, leading to possibly the biggest manhunt in the city's history.