Complex sentence: The horrific condition his daughter was in when she was ransomed, and her subsequent death, left James Parker almost vitrolic in his hatred of the Comanche, and his determination to find his grandson, niece and nephew became obsessive.
Split into simpler sentences: The horrific condition his daughter was in when she was ransomed, and her subsequent death, left James Parker in hatred of the Comanche. His determination to find his grandson, niece and nephew became obsessive.