Chancier McFarland has also agreed to cooperate against alleged co-conspirator Rafael Jones, the alleged triggerman in the case.
The prosecution has presented evidence that both defendants charged with the robbery and murder of Officer Moses Walker made statements admitting their involvement.
“Well, I’m pleased charges were approved,” Philadelphia police commissioner Charles Ramsey told reporters.
Philadelphia homicide detectives said on Sunday the second suspect in the murder of Officer Moses Walker, Jr. is in police custody in Montgomery, Alabama.
Police say they are very close to arresting the alleged second suspect; 19-year-old Chancier McFarland.