Detectives are investigating after a man being held at the Pinellas County Jail died Thursday.Louie Thomas, 39, was pronounced dead at 8:20 a.m., the Pinellas County Sheriff’s Office said in a news release. Thomas had been taken to a hospital Wednesday afternoon for “further medical evaluation.”“At this point in the investigation, detectives have found no evidence that Thomas was involved in any physical altercations while incarcerated at the jail,” the news release states. Thomas had been in custody since Oct. 29 on charges of violating an injunction and failure to appear in court. No further information was immediately released.