Harris County authorities said they believe a woman's ex shot and killed her outside of her Atascocita home late Sunday night. Investigators said it appears that he ambushed her when she got home after a night out with friends. The killer has not been identified or taken into custody. MORE: https://www.khou.com/article/news/crime/shooting-upper-lake-drive-atascocita-texas/285-2639cf42-98be-4b88-9f79-be76d9a777a0