Complex sentence: Six days later, rescue teams found five dead miners and the comatose Harry Warden (Richard John Walters), who survived by killing the other miners with a pickaxe, allowing himself to breathe.
Split into simpler sentences: Six days later, rescue teams found five dead miners and the comatose Harry Warden (Richard John Walters). Warden survived by killing the other miners with a pickaxe, allowing himself to breathe.