The following article may provide some answers:
Sultan Knish: Who Runs March for Our Lives?:
Gun control activists wring their hands over the NRA. They claim that a special interest lobby is illegitimately thwarting the “will of the people”. Yet it’s the anti-gun groups that are invariably false fronts. It’s very clear who runs the NRA. But the latest fake anti-NRA group is a nebulous shadow. Out front are the high school students and out back are the professional activists.
Here is CNN's version.