He is the brother of well - known psychedelics proponent Terence McKenna .
Is a founding board member and the director of ethnopharmacology at the Heffter Research Institute , a non-profit organization concerned with the investigation of the potential therapeutic uses of psychedelic medicines .
He is the brother of well - known psychedelics proponent Terence McKenna and is a founding board member and the director of ethnopharmacology at the Heffter Research Institute , a non-profit organization concerned with the investigation of the potential therapeutic uses of psychedelic medicines .