'Put the human rights of LGBT people on the international stage'
Diana Sacayán’s body found inside Buenos Aires apartment
Advocates protested government officials during opening plenary
Vatican has yet to respond to meeting request with LGBT Catholics
Homosexuality remains criminalized in nearly 80 countries
Int'l groups criticized for pushing issue in developing world
Randy Berry to visit five countries during 11-day trip
Comments seen as attack against same-sex marriage
Advocates sharply criticize church at end of two week meeting
Document described as ‘total reversal' of attitude
