Painless

Survivors of a high school massacre in Boise, Idaho, that occurred in October 2001 return to remember the event 10 years later, but the BAU team is called in when a new killer with a similar style targets the survivors, and they discover two key factors that connect to the original shooting. Also, Hotch is worried that his son, Jack (Cade Owens), may be a victim of school bullying, while Morgan and Reid exchange pranks.