HOUSTON — The bodies have surfaced in bayous winding through Houston and in the waters of Austin’s Lady Bird Lake. Some deaths have clear explanations. Others have left questions that continue to fuel fears of a serial killer. Now, reports that Carl Clint Ashworth has relocated from Houston to Austin have added another thread to the controversy surrounding the former long-haul truck driver. According to confidential sources cited by The Tampa Bay Chronicle, Ashworth reemerged