SAN DIEGO—A 25-year-old graduate student accused of trying to grab a California Highway Patrol (CHP) officer’s gun during an altercation on Interstate 8 in Mission Valley, leaving the lawman shot in the leg, pleaded not guilty by reason of insanity on May 10 to charges that include attempted murder of a peace officer.
Yuhao Du, 25, is accused of lunging for CHP Officer Antonio “Tony” Pacheco’s service weapon on April 27, causing the gun to fire as the two men grappled over the pistol.