A new sneak peek for tonight's episode of Criminal Minds was revealed today, and it shows Jennifer Jareau (AJ Cook) having to deal with her sister's suicide, and informing her son about it.

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The video was revealed exclusively via TVLine. In the clip, JJ's mother Sandy (Candy Clark) is seen talking to her grandson. She shows him a picture of JJ and her sister when they were kids, and tells him about his aunt Rosaline. Although, she doesn't tell him that his aunt commit suicide she does hint at it by saying that she is in a "better place." As JJ discovers what her mother has done, she seems slightly angry and doesn't know what to tell him, as he is asking her id he could meet aunt Rosaline. Sandy thinks she ought to tell him the truth, JJ believes he is not ready for it.

The synopsis for the upcoming episode of Criminal Minds reveals that Jennifer will have to confront her feelings about her sister's death.

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The episode titled, If the Shoe Fits, will delve into JJ's backstory a bit. The BAU will also have another tough case to handle.

The preview for the episode reveals that the criminal is female and lures young men and murders them, little else is made clear about her motivations. "Living in her own fairy tale, but falling in love with this Cinderella, is the kiss of death," runs the tagline. Kate Callahan (Jennifer Love Hewitt) is seen stating that the criminal likes dark haired handsome guys in their twenties.

The episode will air on November 5 at 9 pm ET/PT on CBS

Watch the preview here:

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Criminal Minds, CBS, Television