S04E10 Brothers in Arms
Crime, Drama, Mistério
A spate of fatal police killings have been occurring in Phoenix, Arizona. All officers are shot in the neck in the line of duty. Much to the chagrin of the Phoenix Police Department rank and file, the BAU is called in to assist in the investigation. Whereas the police department initially believes the perpetrators to be gang members, the BAU believes it is one unsub due to victimology and MO - the shootings are methodical and the dead officers' badges have been taken. Besides the victims being Phoenix police officers, the unsub does not seem to be targeting specific individuals within the Phoenix Police Department. Information leads the investigation into the underground world of fight clubs. However, the investigators are searching out someone atypical to the public mentality of a fight clubber.