 He was again granted parole.In 2001, Ingrid Rimland, the wife of the Holocaust denier Ernst Zündel, published a petition to the Canadian government calling for Zündel's release, which was signed by Rennicke and his wife Ute.Rennicke is one of the founding members of the "" (Society for the Rehabilitation of Those persecuted for Refutation of the Holocaust), an organisation originally proposed and founded by the former Red Army Faction lawyer Horst Mahler.