Criminal Minds: "Our Darkest Hour" -- Detective Spicer (special guest star Eric Close, left) talks with the son of a murder victim, Carter (Maxim Knight, right) when he joins forces with the BAU team to find a serial killer who preys on his victims in the dark, on the fifth season finale cliffhanger of CRIMINAL MINDS, Wednesday, May 26 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Adam Rose/ABC Studios ©2010 ABC Studios Television. All Rights Reserved.