Complex sentence: While working at his last job he witnessed a brutal murder which caused him to evaluate his life and his future; this event happened as he drove his car in a rowdy section of Superior where he saw a drunken sailor stab a woman to death.
Split into simpler sentences: While working at his last job, he witnessed a brutal murder which caused him to evaluate his life and his future. While driving his car in a rowdy section of Superior, he saw a drunken sailor stab a woman to death.