Rafael López Aliaga is an Opus Dei member
Erika Hilton is a former sex worker, member of São Paulo Municipal Council
Erika Hilton and Duda Salabert threatened during campaigns
Neither candidate received 50 percent of vote on Sunday
Alba Rueda is a transgender woman, long-time activist
Document would have enshrined LGBTQ rights in country
Alejandra Ironici found dead in home on Sunday
Gustavo Petro has pledged to support LGBTQ, intersex rights
Activists have sought Article 365 repeal for more than two decades
Draft document specifically includes LGBTQ rights
