Raiders offensive tackle Mario Henderson was arrested Thursday morning in Florida and charged with carrying a concealed firearm, according to several reports. Henderson Henderson, 26, was pulled over by police in Fort Myers for playing music too loud. In response to a question by the arresting officer, Henderson said he had a gun in his vehicle. Henderson started seven games at left offensive tackle last season, but he lost his job to rookie Jared Veldheer. He is a free agent after spending his first four NFL seasons with the Raiders.