Thug Killed Three Teen Girls Then Abused 12-Year-Old Who Witnessed Carnage
An armed thug shot his girlfriend's two teenage daughters and their teen pal dead before sexually assaulting the siblings' terrified 12-year-old sister. Sayuri Gill, 19, poses in undated photo. Her mothers ex Humberto Valdez-Saldana, 38, killed her, her sister and one of her friends, 14, and sexually assaulted her other…