Criminal Minds: An elite group of profilers analyze the nation's most dangerous criminal minds in an effort to anticipate their next moves before they strike again. Cook, Kirsten Vangsness. Derek Morgan brings the BAU a lead in the case against serial killer and escaped convict Mr. Scratch. Season 12 ends with Derek Morgan returning and bringing the BAU a lead in a case against serial killer and escaped convict Mr. Scratch. On Criminal Minds Season 12 Episode 22, Derek Morgan (guest star Shemar Moore) returns to the BAU team with a lead that might help catch Mr. Scratch. Directed by Glenn Kershaw.

First Aired: May 10, 2017. With Joe Mantegna, Matthew Gray Gubler, A.J. Season 12 ends with Derek Morgan returning and bringing the BAU a lead in a case against serial killer and escaped convict Mr. …
Criminal Minds 'Red Light' (Season 12, Episode 22). Reviews, stream, watch online.