The one issue I have with the false flag scenario is that who would be able to be convinced to do it? Most of these shooters wind up dead, either by an armed citizen (granted highly unlikely in NY, even upstate) or by police response. Seemed like from snippet of the “manifesto” he intended to surrender, but still got killed. I mean you’d have to either recruit someone so looney toons they’d do it for the lolz, or someone terminally ill, or someone just so stupid they think they can surrender and survive. None of which seems terribly plausible. Maybe someone can explain how you could recruit for a false flag?