Criminal Minds Wiki

"Gatekeeper" is the seventh episode of Season Nine and the 193rd overall of Criminal Minds.


After a series of victims are found strangled to death in Boston, the BAU looks for a serial killer who likes to keep mementos of the victims, and the team wonders if a common link to the casualties could lead them to the culprit. Meanwhile, the BAU rallies around Rossi when his favorite bar is on the verge of closing.

Guest Cast


  • "As Time Goes By" by Frank Sinatra (sung by karaoke singer Franklin Fung)
  • "Itsy Bitsy Spider", a popular lullaby
  • "Piano Man" by Billy Joel (sung by a group of karaoke singers)

Bookend Quotes

  • David Rossi: "If passion drives you, let reason hold the reins." — Benjamin Franklin
  • Spencer Reid: "The most important thing that parents can teach their children is how to get along without them." — Frank Clark

Criminal Minds Episodes