police shot and killed him. >> our nation mourns the loss the senseless loss of four of our nation's heroes. >> reporter: asking her face be blurred for safety an unidentified relative of the gunman tells kprc the family can't understand what happened. he's a devoted muslim and trained mixed martial artist. >> every time he talked to me shook my hand he was smiling, courteous, polite never raised his voice. >> reporter: he recently travelled to jordan or yemen for a period of time. he was supposedly teaching kids wrestling. >> his dad said he moved back home. >> reporter: his high school yearbook photo surfaces along with a quote laiden with the