ORLANDO, Fla. — It seemed as if all of Orlando was here, crowded around a glittering lake to remember the 49 people who died in a fit of violence.

Among the people, estimated by the police at 50,000, present at a vigil on Sunday for the victims of the Pulse nightclub shooting were:

Minnie Perez, 47, a Pulse regular who said she had lost 14 friends. She wore a blanket bearing their faces.

Megan Elkins, 25, who held her 7-year-old nephew as if it was the last time she would have the chance to do so.

And Syed, Ivette and Sasha Shamsuzzaman, a Bangladeshi-Puerto Rican family sitting under a black umbrella at the edge of the lake. Mr. Shamsuzzaman, 61, a Muslim from Bangladesh, wore a peace sign around his neck and called for Pulse to reopen as quickly as possibly.