Prosecutors say Torres shot Officer Edward Davies during a struggle inside a grocery store in Feltonville.
Torres was convicted, but last year, the state supreme court vacated his sentence and ordered a new trial.
The court agreed that police never had probable cause to search his home.
Decision for suspect in Philly cop shooting: plea deal or new trial
Torres then rejected a plea deal by the district attorney's office.
Officer Davies was in a coma for weeks, and still suffers nerve damage from the shooting.