CRIMINAL MINDS: TRACKING DOWN SPENCER'S DAD

Criminal Minds: Reid, Morgan, and Rossi track down Spencer's father in "Memoriam" written by Jay Beattie & Dan Dworkin and starring Joe Mantegna, Thomas Gibson, Paget Brewster, Shemar Moore, A.J. Cook, Matthew Gray Gubler and Kirsten Vangsness. Video courtesy of CBS.