Former physician sentenced to life without parole for poisoning his patients and co-workers.
He was awarded the American Chemical Society Award upon graduating from Quincy College.
He admitted to killing 4 people, but is believed to have killed as many as 60.
He is suspected of regularly poisoning one of his girlfriends, Kristen Kinney, who ended up committing suicide by shooting herself.
He killed people while working in medicine, as did Efren Saldivar.