State police have handed over their investigation to prosecutors, who said a decision won't be made until a federal civil rights investigation wraps up.
Officer Ramos was charged with second-degree murder and involuntary manslaughter, and Cpl. Jay Patrick Cicinelli was charged of involuntary manslaughter and felony use of excessive force.
Both pleaded not guilty. In 2014, a jury acquitted both Ramos and Cicinelli.
"Help me, help me, help me," he said, according to a report by the Los Angeles Board of Police Commissioners. "I can't breathe. I can't breathe. Help me, please."