Complex sentence: But Chase falls asleep while driving and is slashed by Freddy's claw which causes him to have a massive accident; his death seems to affect Dylan even further which causes concern for Heather's long-time friend and former costar John Saxon.
Split into simpler sentences: But Chase falls asleep while driving and is slashed by Freddy's claw which causes him to have a massive accident. His death seems to affect Dylan even further which causes concern for Heather's long-time friend and former costar John Saxon.