David Martinez, a member of the Mongols motorcycle gang, was sentenced to 10 years in prison Tuesday after pleading no contest in November to charges of voluntary manslaughter for killing a Pomona ...

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 ...

David Martinez, a member of the Mongols gang, admits to shooting SWAT officer Shaun Diamond in the back of his neck with a 12-gauge shotgun during a police raid on his family's home in October 2014.