.Newly released video captured by an Arizona police officer’s body camera captures the chilling moment when a deranged suspect drew a gun and fired the bullet that killed the officer last month.Rookie Flagstaff Police Officer Tyler Stewart’s camera caught the entire, deadly encounter with Robert Smith, whose girlfriend had called police on Dec. 27 to report he had trashed her apartment. The video, released by the police department in response to Freedom of Information Act requests, begins with Stewart getting out of his squad car and ends with Smith pointing the gun at him and firing.Smith then shot himself dead, and Stewart, who was 24, later died at a hospital...