Anti-Gay Ugandan Extremist Martin Ssempa is U.S. Citizen; | Testimony Sought in U.S. Court Case By Melanie Nathan, April 09, 2015. The Center for Constitutional Rights asked a court to issue a subpoena to Martin Ssempa, a prominent anti-gay crusader in Uganda, to testify in a case brought on behalf of the Ugandan LGBTI rights … More Subpoena sought to force testimony in USA from eat da poo poo Martin Ssempa