Gennaro Marx was a high-school English teacher.
After coming home one night, and attempting to close the window, Marx turned around to find an intruder in his home. Questioning the person as to their identity, he turned his attention to his rattling door, though when he looked back at the intruder, he came face to face with him, the person who looked very much like a demon. Attempting to escape through his door, Gerald Crane was waiting at the door, also disguised as a demon, walking in when Gennaro opened the door. The two proceeded to attack him. After being murdered, his adrenal glands were removed.