January 13, 2015 4:55 pm Man Accused of Killing Case Worker Wants to Plead Guilty A man accused of shooting his mental health caseworker to death at Mercy Fitzgerald Hospital in July says he wants to plead guilty. Richard Plotts is charged with the murder of Theresa Hunt. US & World Videos 2:10 ‘You're speechless and can't believe what you saw.' Mom sees video of attack on her autistic son on SEPTA train 0:39 1 dead, 3 injured in Eastwick after two separate shootings, police say 0:22 Rescue crews call off search for missing kayaker in Schuylkill River 2:06 NJ first responders deploy tracking equipment that can pinpoint threats from recreational remote pilots 0:45 Philly police are making efforts to get ATVs and dirt bikes off the roads before the summer