Joseph Aloysius Wambaugh, Jr. is a best-selling American writer known for his fictional and nonfictional accounts of police work in the United States. Many of his novels are set in Los Angeles and its surroundings and feature Los Angeles police officers as protagonists. He won three Edgar Awards, and was named a Grand Master by the Mystery Writers of America.

East Pittsburgh is a borough in Allegheny County, Pennsylvania, United States, approximately 11 miles (18 km) southeast of the confluence of the Monongahela and the Allegheny rivers at Pittsburgh. The population in 1900 stood at 2,883, and in 1910, at 5,615. As of the 2020 census, the borough population was 1,927, having fallen from 6,079 in 1940. George Westinghouse erected large works there which supplied equipment to the great power plants at Niagara Falls and for the elevated and rapid-transit systems of New York City. Nearby, the George Westinghouse Bridge over Turtle Creek is a prominent fixture in the area, which is very near the borough of Braddock.