COLUMBUS, Ohio — A Michigan-based health system and its insurer argue they aren't responsible for the costs of an Ohio doctor's defense against murder charges in the deaths of 25 hospital patients. Lawyers for Livonia-based Trinity Health Corporation and the insurer argue in court filings this week that William Husel's lawsuit against them over his legal costs should be dismissed. They say the liability policy at issue doesn't cover criminal charges. Husel is accused of ordering excessive painkillers for patients in the Columbus-area Mount Carmel Health System. He pleaded not guilty and maintains he was caring for dying patients, not trying to kill them.