HARRIS COUNTY, Texas – David Conley told Harris County Sheriff’s investigators that he broke into his former home and killed eight people, according to a Harris County prosecutor. During probably cause court Sunday, a prosecutor recounted Conley's statement to investigators that he broke in through an open window after the woman he formerly lived with, Valerie Jackson, changed the locks on the doors. The prosecutor went on to say Conley then told investigators that he restrained eight people inside, including Jackson and a 6-year-old boy, and shot them in the back of the head. Doctors at the scene of...