"Unfinished Business" is the fifteenth episode of Season One of Criminal Minds.


When "The Keystone Killer", a serial killer in Philadelphia, resurfaces after eighteen years of inactivity, the BAU works with now-retired FBI agent who worked on the original case to catch the killer.

Guest Cast

Referenced Criminals


  • "I Don't Wanna Know" by Sheryl Crow
  • "One Step Closer" by Vaughan Penn (DVD version only)

Bookend Quotes

  • Jason Gideon: Norman Maclean wrote, "It is those we live with and love and should know who elude us."
  • Elle Greenaway: Abraham Lincoln once said, "In the end, it's not the years in your life that count. It's the life in your years."

Criminal Minds Episodes
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