HOUSTON (AP) — The U.S. Supreme Court refused Monday to review appeals in three Texas death row cases, including one where a man pleaded guilty to a triple slaying in South Texas. The high court's rulings moved two inmates closer to execution: LeJames Norman, 31, condemned for the 2005 shooting deaths of three people during a botched robbery of a home in Edna, about 100 miles southwest of Houston, and Bill Douglas Gates, 67, condemned for strangling a Houston woman in 1999. Neither has an execution date. Norman and an accomplice also now on death row, Ker'Sean Ramey, were convicted in the slayings of Samuel Roberts, 24, Tiffani Peacock, 18, and Celso Lopez, 38, inside the home they shared in Edna, in Jackson County. Roberts' parents discovered the bodies Aug. 25, 2005. Court records indicated Ramey and Norman believed there was 100 kilograms of cocaine in the house and hoped to steal it, but they never found any drugs. Norman was arrested trying to cross