LAS VEGAS -- Clark County fire investigators say the Summerlin house fire that claimed a woman's life was intentionally set by the woman.
Twenty-eight-year-old Karen Heely died in the November 22, 2009 fire on Panorama Crest Avenue.
According to the report by investigators, Heely started several small fires in the home. Investigators believe the fires got out of hand and when she attempted to flee the home, she hit her head on the door and was knocked unconscious.
Investigators say Heely and the homeowner were involved in some sort of altercation that day that prompted her to set the fire.