Brandon Mayfield
Brandon Mayfield (born July 15, 1966) is an American lawyer who was incorrectly detained in connection with the 2004 Madrid train bombings on the basis of a faulty fingerprint match. On May 6, 2004, the FBI arrested Mayfield as a material witness in connection with the Madrid attacks, and held him for two weeks, before releasing him with a public apology following Spanish authorities identifying another suspect.