Lynn Pierce
From Tardis Wiki, the free Doctor Who reference
Lynn Pierce was the mother of Jasmine Pierce and the girlfriend of Roy.
Biography
Like Roy, she thought that her daughter was a bit strange because she had no friends and talked with her imaginary friends.
Roy was killed by the Fairies at a party celebrating the 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. (TW: Small Worlds)
According to Jack, after her daughter was taken by the Fairies, Lynn repeatedly beat Jack to death in rage. (The Torchwood Archives)
