Shane Tamura -- the gunman behind Monday's deadly mass shooting in Manhattan -- was a "quiet, hard worker" during his high school football days, his former coach said following the tragedy.
Tamura, 27, was a former running back at Granada Hills Charter school in Southern California in the mid-2010s before he gunned down four people, including an NYPD officer, at 345 Park Avenue on Monday.
His former assistant coach, Walter Roby, told FOX 11 that he was a "quiet" kid and a "hard worker" who was easy to coach after transferring to Granada Hills from Golden Valley.