The Riverside district attorney is expected to announce on Thursday whether he will pursue the death penalty for Green.
On Nov. 7, Green allegedly stole a big rig, hit a car and then took off running with Bonaminio in pursuit. Green is accused of ambushing Bonaminio in Fairmount Park, ignoring the officer's pleas to spare his life and murdering him in cold blood.
Green, who has a violent criminal history, is undergoing a mental evaluation. He is scheduled to enter a plea Dec. 16.
