Ellen Greenberg was found dead in 2011 in her Philadelphia apartment with 20 knife wounds and numerous bruises. Authorities ruled her death a suicide. Fourteen years later, the pathologist who performed her autopsy says he’s changed his mind.

Neuropathologist Dr. Wayne Ross cites a towel placed next to her, clean despite her 20 stab wounds, as evidence of the staging.

Dr. Josh and Sandee Greenberg, parents of Ellen Greenberg, speak on a new theory after medical examiner reversed 'suicide' ruling.