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
First round of Brazilian presidential election to take place Oct. 2
LGBTQ+ and intersex activists welcomed Gustavo Petro's election
