Lynn Pierce

Lynn Pierce was the mother of Jasmine Pierce and the girlfriend of Roy.

Biography
Like Roy, Lynn thought that her daughter Jasmine was a bit strange because she had no friends and talked with her imaginary friends, and felt that Jasmine spent too much time alone.

Roy was killed by the Fairies at a party celebrating her and Lynn's five-year anniversary of their relationship in 2007. She was left on her own when Jasmine was taken by the Fairies to their "Lost Lands" to become a Fairy herself. (TV: Small Worlds)

According to a file on the incident written by Jack Harkness, after her daughter was taken by the Fairies, Lynn repeatedly beat Jack to death in rage. (The Torchwood Archives)
 * Jack did not show any visible signs of physical assault when leaving the Pierce residence, and the rest of the Torchwood team, who were present at the time, did not appear to learn of Jack's immortality until the release of Abaddon after this.