In the episode "100" (season 5), Haley is killed by fugitive serial killer George Foyet (C.
Thomas Howell), also known as "The Boston Reaper", whom Aaron fights and beats to death.
He also has a son named Jack (Cade Owens) and a brother named Sean.
After Haley is murdered, he has custody of Jack, and Haley's sister, Jessica Brooks (Molly Baker), helps him take care of Jack.
Criminal Minds is an American police procedural crime drama television series created by Jeff Davis, and is the original show in the Criminal Minds franchise.