2018 World Cup begins on Thursday
Massacre survivor spoke at Dupont Circle vigil
Lights will remain through end of Pride month
Inaugural parade, festival to take place in 2019
Kim Darroch hosted embassy Pride reception in D.C.
Event took place on Saturday without incident
Measures ban anti-trans discrimination, youth conversion therapy
Survivors, victims' families remain vocal gun control advocates
Activists highly critical of Trump administration's LGBTI rights record
LGBTI advocacy group is behind Pride month effort