Linda Thomas-Greenfield spoke at U.N. LGBTI Core Group event
Prominent activist found dead in Port-au-Prince home in 2019
President noted crackdowns in Chechnya, Cameroon
Brazilian president opened U.N. General Assembly
Prime minister champions LGBTQ rights
Event took place without violence
Aldo Dávila a vocal critic of country's president, corruption
National Assembly expected to vote on proposal in December
Organizers cite potential COVID-related travel restrictions
Lyra McKee killed while covering 2019 riot