Once reborn in his machine built by unsuspecting privately licensed scientists , O'Hara seeks revenge on RoboCop .
Through flashbacks , the reader learns that RoboCop had killed O'Hara for some reason in an untold story .
Once reborn in O'Hara 's machine built by unsuspecting privately licensed scientists , O'Hara seeks revenge on RoboCop .
Through flashbacks , the reader learns that RoboCop had killed O'Hara for some reason in an untold story .