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Joseph R. Kozenczak
American police chief and investigator (1940–2015)
Joseph R. Kozenczak
Joseph R. Kozenczak (20 March 1940 – 13 May 2015) was the former Chief of Police of Des Plaines, Illinois where he worked for 27 years. After his retirement from police in 1989, he worked as a regional security director in the United States and Canada for TNT Express, Vice President of Investigations for John Reid and Associates, Criminal Justice Specialist for the State of Illinois, and practiced as an Illinois licensed private investigator. He is recognized for his role of Lieutenant and Chief Investigator of the John Wayne Gacy serial murder investigation in 1978. In June 1981, Kozenczak joined the FBI Academy. He would regularly participate in lectures; often delivered to students of criminology.
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