In My Haunted Heart, it was revealed that he is the killer of Charles Matheson. In the end, he died after being hit by a train. He followed Max who told him she would help him get away, but instead, she took him to the train tracks.
Dillon is described as a good looking, loyal, and sweet small-town American teen, who will serve as a source of comfort and support for his struggling girlfriend. It is revealed his ancestors were also part of the pact, so he tried to stay alive by sacrificing the Five.
He is tall (about six-feet), dirty blonde hair, blue eyes and a round, boyish face.