[s9e19] The Edge Of Winter Instant

: Aasha Davis as Daria Samsen and Emayatzy Corinealdi as her sister, Ellen. Director : Hanelle Culpepper.

: Daria's trauma is so severe that she dissociated from her actions, creating a fictional partner named "Toby" to blame for the murders. To spare her from life in prison, Morgan decides not to have her testify, which results in her staying in the psychiatric hospital indefinitely. Production Details Air Date : March 19, 2014.

: Morgan eventually realizes that Joe Bachner did not have a male partner as initially suspected. Instead, Daria herself had developed extreme Stockholm Syndrome and assisted Bachner in torturing and killing other captives.

"Criminal Minds" The Edge of Winter (TV Episode 2014) - IMDb