FILE - In this Aug. 9, 1977 file photo, John Keenan, chief of detectives, speaks at a news conference at New York City Police headquarters after two new sketches of the .44 Caliber Killer were unveiled at right, in New York. Keenan who led New York City's manhunt for the "Son of Sam" killer has died at age 99, announced by the NYPD, Thursday, Sept. 19, 2019. Keenan was the public face of the hunt for killer David Berkowitz in 1976 and 1977, as the young postal worker stalked his victims with a .44 caliber handgun. (AP Photo/Ray Howard, File)