Origin

Gregory Costello was living in Arcadia, Virginia, married with two kids, a girl and a boy. When the Crossed epidemic spread through the world, he was away from his family. His wife called him on the phone to tell him the neighbors were acting savagely. She was in panic. Gregory never went home. Instead, he stepped on his bike and crossed the country. On his journey, he met Steve, Leon and the twin sisters Ashley and Ashlynne.

Shot in his knee, Gregory was left behind by Steve. The twin sisters, who had become infected by the Crossed, infected Gregory as well. They later beheaded him.