HUNTSVILLE, Texas — A convicted sex offender was set to die Wednesday evening for slipping into a San Antonio apartment in the middle of the night, snatching a 7-year-old girl and raping and strangling her.Appeals were exhausted and no late legal maneuvers were made to keep Guadalupe Esparza, 46, of San Antonio, from becoming the 13th Texas inmate to receive lethal injection this year. A clemency petition was rejected Monday by the Texas Board of Pardons and Paroles.The battered body of Alyssa Maria Vasquez was found in some weeds behind a convenience store near her home hours after she was...