Dianna Catterton

As the BAU investigates targeted killings in Tampa, they also deal with their own feelings about the loss of Prentiss.

The team is called in to help out a SWAT team in Virginia when a prominent school is overtaken by shooters.

When Polly is confined to the couch after a back injury, Max and Elaine help out with Natalie; one of Natalie's classmates asks Elaine about heaven and religion.