Complex sentence: A news report reveals that, aside from setting the "reactivated bodies" on fire, only a gunshot or heavy blow to the head can stop them, and that posses of armed men are patrolling the countryside to restore order.
Split into simpler sentences: A news report reveals that, only a gunshot or heavy blow to the head can stop them, aside from setting the "reactivated bodies" on fire. It also reported that posses of armed men are patrolling the countryside to restore order.