These cases were investigated by the Office of Attorney General’s Bureau of Narcotics Investigations, Gun Violence Task Force, Allegheny County District Attorney’s Narcotics Enforcement Team, Allegheny County Police, Pittsburgh Police, Monroeville Police, Penn Hills Police, Allegheny County Housing Authority Police, Turtle Creek Police, Pennsylvania State Police, the Federal Bureau of Investigation, Drug Enforcement Administration and the Bureau of Alcohol, Tobacco, Firearms and Explosives.