Maria Russell

The murder of an Oakland gang member forces Cho to confront his murky past when he discovers that the victim was an old friend who is willing to go to extreme lengths to exact revenge.

The BAU team hunts for a serial killer who targets members of the police department in Phoenix in a case that hits close to home for Morgan, a former cop.

Kate discovers taking over the PTA at school is not as easy as she first though while Hilary loses her date for the school dance.

Jake and Amelia escape their supervision to meet; while searching for the kids, Martin and Lucy find information about Calvin's brain-damaged brother; Guillermo faces a difficult decision.