Complex sentence: As Jose steps down from the bench, Petrocelli calls on Salvatore Zinzi, a criminal who spent time on Riker's Island who claims to have had information from a fellow inmate about the holdup at the store.
Split into simpler sentences: As Jose steps down from the bench, Petrocelli calls on Salvatore Zinzi. A criminal who spent time on Riker's Island who claims to have had information from a fellow inmate about the holdup at the store.