Feb. 5 (UPI) -- A pilot and an Arizona state trooper died when their police helicopter crashed while responding to a police-involved shooting in Flagstaff. The Arizona Department of Public Safety did not identify the deceased but said they died when the Bell 407 Ranger helicopter in which they were flying crashed in a location north of Route 66 and between Thompson Street and Mark Lane in Flagstaff. The Arizona DPS did not say what caused the crash while the pair was responding to a call for