David Richard Berkowitz (born Richard David Falco, June 1, 1953), also known as the Son of Sam and .44 Caliber Killer, is an American serial killer who pleaded guilty to eight shootings that began in New York City on July 29, 1976.Berkowitz grew up in New York City and served in the United States Army. Using a .44 Special caliber Bulldog revolver, he killed six people and wounded seven others by July 1977. The killing spree terrorized New Yorkers and gained worldwide notoriety. Berkowitz eluded the biggest police manhunt in the history of New York City while leaving letters that mocked the police and promised further crimes, which were highly publicized by the press.

Berkowitz was arrested on August 10, 1977, and subsequently indicted for eight shootings. He confessed to all of them, and initially claimed to have been obeying the orders of a demon manifested in the form of a dog belonging to his neighbor "Sam". Berkowitz was found mentally competent to stand trial. He pleaded guilty to second-degree murder, was found guilty, and was sentenced to six consecutive life sentences with possibility of parole after 25 years, in state prison. He subsequently admitted that the dog-and-devil story was a hoax. In the course of further police investigations, Berkowitz was also implicated in many unsolved arsons in the city.

Intense media coverage of the case lent a kind of celebrity status to Berkowitz, which many observers noted that he seemed to enjoy. In response, the New York State Legislature enacted new statutes, known popularly as "Son of Sam laws", designed to keep criminals from financially profiting from the publicity created by their crimes. The statutes have remained law in New York despite various legal challenges, and similar laws have been enacted in several other states.

During the mid-1990s, he amended his confession to claim that he had been a member of a violent Satanic cult that orchestrated the incidents as ritual murder. A few law enforcement authorities have said that his claims might be credible, but he remains the only person ever charged with the shootings. A new investigation of the murders began in 1996, but was suspended indefinitely after inconclusive findings.

Yonkers () is a city in Westchester County, New York, United States. Developed along the Hudson River, it is the third most populous city in the state of New York, after New York City and Buffalo. The population of Yonkers was 211,569 as enumerated in the 2020 United States Census. It is classified as an inner suburb of New York City, located directly to the north of the Bronx and approximately two miles (3 km) north of Marble Hill, Manhattan, the northernmost point in Manhattan.

Yonkers's downtown is centered on a plaza known as Getty Square, where the municipal government is located. The downtown area also houses significant local businesses and nonprofit organizations. It serves as a major retail hub for Yonkers and the northwest Bronx.

The city is home to several attractions, including access to the Hudson River, Tibbetts Brook Park, with its public pool with slides and lazy river and two-mile walking loop Untermyer Park; Hudson River Museum; Saw Mill River daylighting, wherein a parking lot was removed to uncover the Nepperkamack (Saw Mill River); Science Barge; and Sherwood House. Yonkers Raceway, a harness racing track, renovated its grounds and clubhouse, and added legalized video slot machine gambling in 2006 to become a "racino" named Empire City. In more recent years, Yonkers has undergone progressive gentrification.Major shopping areas are located in Getty Square, on South Broadway, at the Cross County Shopping Center and Westchester's Ridge Hill, and along Central Park Avenue, informally called "Central Ave" by area residents, a name it takes officially a few miles north in White Plains. Yonkers is known as the "City of Seven Hills", including Park, Nodine, Ridge, Cross, Locust, Glen, and Church Hills.