Dr. Angus Leighton killed the man who attacked Dr. Malaya Pineda on Code Black.
Angels Memorial hospital was rocked when a deranged patient killed Dr. Gina Perello and almost killed Dr. Malaya Pineda. After saving Malaya, Dr. Angus Leighton allowed the crazed man to die, who had confessed that he would never stop coming after her.
After telling his older brother about his actions, the two vowed to never speak of it to anyone ever again.
Watch Code Black on CBS.