A member of the Mongols motorcycle gang who killed a Pomona police SWAT officer serving a search warrant more than eight years ago pleaded no contest Wednesday to voluntary manslaughter after twice being acquitted of murder.
David Martinez, 44, had been found not guilty of first-degree murder and second-degree murder in two separate trials over the fatal shooting of Officer Shaun Diamond during the October 2014 raid on his San Gabriel family home.
Martinez insisted he did not know it was the police making a forced entry to his home when he fired a shotgun once, telling one of the juries he believed it was members of the Mongols biker gang coming for him.
