SERIAL KILLER DOCTOR? Dr. William Husel prescribes lethal doses of fentanyl, killing over 25 patients. Are there more?

Dr. William Husel is facing 25 murder charges for allegedly using fentanyl to kill critically-ill patients. He adamantly claims innocence and files a civil lawsuit against his employers. Investigators, however, say that they've established escalation and intent after Williams continuously administers increased levels of the drug to patients.

Joining Nancy Grace to discuss:

Mark Tate: Savannah, Ga., Attorney, represents Chatham County, South Carolina; suing opioid manufacturers      Dr. William Morrone: Chief Medical Examiner of Bay County Michigan, Chief Medical Officer for Recovery Pathways, created NEW portable treatment center  Bruce Johnson: Owner of ISP Investigations & Master Sgt. Region One Crime Scene Commander, Chicago Metro Area (Ret)  Dr. Caryn Stark: NYC PsychologistHaley Nelson: Investigative reporter at ABC 6 / FOX 28, Columbus, Ohio