“The Longest Night” — Rossi (Joe Mantegna) and the rest of the BAU team continue to hunt the serial killer on the loose in Los Angeles in the conclusion of last seasonâs cliffhanger, on the sixth season premiere of CRIMINAL MINDS, Wednesday, Sept. 22 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Ron P. Jaffe/CBS ©2010 CBS Broadcasting, Inc. All Rights Reserved.