Recent murders, attacks have sparked concern among activists
Incident took place at the Fireplace on Sunday morning
Aldo Dávila is member of leftist Winaq Movement
Aaron and Melissa Klein wouldn't make wedding cake for same-sex couple in 2013
Incident took place on Georgia Avenue on Saturday
Incident took place early Sunday morning
'We get another bite at the apple,' says NCLR legal director
Activists celebrated landmark decision in country's capital
Zoe Spears killed near Eastern Avenue on Thursday night
Measures sparked widespread criticism among LGBT activists