In 1996 a gunman opened fire from the top of a multistory carpark killing passersby on Whitewater High Street. Since known as the Whitewater massacre, one of the victims was a tactical squad police officer, Sgt. Nick Patterson, Supt. Peter Boyd's best friend. Patterson's police-issued Glock pistol disappeared and was the weapon used to kill him. The Glock disappeared that day b...