The New York City mayor's race candidates honed in on fighting crime and prostitution after the mass shooting took quality of life issues front and center.

Martin St. Louis died in the Sunday gunfight he started when he fired at Folk Nation gang member Jamel Childs, 35, according to police.

Around four shooters opened fire at a New York City restaurant early Sunday, resulting in three deaths and eight injuries. According to police, the violence is gang-related.

Wilky Vladimil Toribio Perez was shot in the left shoulder on Pine St. near Etna St. in Cypress Hills around 2:25 a.m. Aug. 10, police said.