Dr. Donald Cosgrove was a surgeon and a murderer.
He killed a woman named Nancy O'Neal after she had been brought to the hospital after being shot and critically wounded by a gangster named Elias Camacho. He did so to harvest her organs, an act that would have guaranteed his transfer to a better hospital.
Cosgrove and Camacho were charged together as accomplices in O'Neal's murder. He eventually accepted a guilty plea to second-degree murder and was sentenced to fifteen years to life in prison. (L&O: "Harvest")