Complex sentence: Unfortunately, Augustine left the victims dying from the concrete shards, including Akomish leader Betty (Karen Austin); and Reggie (who wasn't tortured) learned that the only way anyone can remove them is to use Augustine's power on them again.
Split into simpler sentences: Unfortunately, Augustine left the victims dying from the concrete shards, including Akomish leader Betty (Karen Austin). The only way to remove them is to use Augustine's power on them again.