The banquet hall had been rented out for a concert. Three people got out of an SUV and opened fire on the crowd outside, police director said.
Trump himself suggested the root cause of mass shootings was a crisis of mental health -- making no mention of gun control.
Nikolas Cruz was a part of a multimillion-dollar effort by the gun group to support youth shooting clubs and other programs.
At funerals and in the streets of Parkland, a suburb on the edge of the Everglades, anger bubbled over at the senselessness of the shooting and at the widespread availability of guns.
While Trump has offered sober responses to some tragedies since he took office, he has also drawn criticism for more inflammatory reactions to acts of violence.
A 19-year-old man who was expelled from high school for disciplinary reasons returned to the building in Parkland, Florida and opened fire on February 14, 2018, killing at least 17 people.
Broward County Sheriff Scott Israel said Wednesday the 19-year-old suspect, Nikolas Cruz, had been expelled from Marjory Stoneman Douglas High School for unspecified disciplinary reasons.
The state, home to 21 million people, has handed out more gun permits than any other state -- around 1.9 million as of January, according to official statistics.