Complex sentence: Weitz once again reprised his role for a story arc on April 19,2011 and was killed off on May 22,2012 He appeared for several episodes afterwards as a hallucination.
Split into simpler sentences: Weitz once again reprised his role for a story arc on April 19,2011. And was killed off on May 22,2012 He appeared for several episodes afterwards as a hallucination.