(Portland, OR) -- A Portland Police K9 unit is dead after being struck by police gunfire during an arrest and deadly police shooting in Gresham. Police say K9 Kylo was hit by friendly fire as officers tried to arrest a suspect in a Gresham homicide last week. Portland Police identified the man who was killed in the officer-involved shooting as 39-year-old Eddie Campbell, of Portland. He was wanted in connection with the fatal shooting of Jeff Thompson in Gresham. Police say during a violent encounter with Campbell, gunfire from police wounded K9 Kylo who later was euthanized by a veterinarian. Officers recovered a handgun they say Campbell carried. Police have not said whether Campbell fired his gun. The investigation continues.