 On October 21, 2011, O'Brien was ordained as a minister by the Universal Life Church Monastery, allowing him to perform a same-sex marriage while back in New York, then one of the few states in the US where gay marriage was legal, to tape a week's worth of shows.The wedding, between a member of O'Brien's staff and his partner, was held on the stage of the Beacon Theatre on November 3, 2011, and broadcast on "Conan".Starting in September 2006, O'Brien was stalked by Father David Ajemian of the Archdiocese of Boston, who, despite multiple warnings to stop, sent O'Brien letters signed as "your priest stalker" and came into contact with O'Brien's parents.