Diego Amarosa

A mother steps forward with valuable information for the BAU to aid in their investigation of an UnSub known as the Bone Crusher. Also, Reid must adapt to a new set of rules in prison life.

The BAU investigates an urban vampire in New York who kidnaps his victims at night and holds them underground in the sewer system. Also, Reid makes an impossible decision in prison that severely affects himself and other inmates.

The BAU believes two UnSubs may be operating at the same time, when victims killed in two drastically different ways are discovered in the same city. Also, the team grapples with keeping Reid safe in prison.