“Blood Feud” –When Rigsby’s father is found injured at a crime scene, the team must find out if it is the result of a long-standing small town gang war, on THE MENTALIST, Sunday, Oct. 21 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Photo: Colleen Hayes/Warner Bros. ©2012 Warner Bros. Television. All Rights Reserved.