Complex sentence: Bowie poses as a sheriff's deputy to spring Chickamaw from jail but he quickly becomes disgusted with the violent, raving Chicamaw and abandons him on the side of the road.
Split into simpler sentences: Bowie poses as a sheriff's deputy to spring Chickamaw from jail. But he quickly becomes disgusted with the violent, raving Chicamaw and abandons him on the side of the road.