" Omar Mateen shattered the tenuous, hard-fought sense of personal safety that many gay, lesbian, bisexual and transgender Americans have begun to feel as the movement for equality has made significant gains in recent years. His bullets and the blood he left behind that early morning were a reminder that in many corners of the country, gay and transgender people are still regarded as sinners and second-class citizens who should be scorned. While the precise motivation for the rampage remains unclear .  .  . " (the New York Times Editorial Board, June 15).