My comment was based on the idea of anti gun activist contriving to prop up random kids to perpetrate these acts without being caught.
Decide for yourself how far you want to look behind the curtain, life is much more hopeful if you take what you are told at face value.
The "anti gunners" are nothing but puppets, most as stupid as they sound.
They are simply pawns being used to clear a few minor pieces, both as a distraction from the main attack as helping soften things up to make it that much easier for the game to go ahead without little annoying road bumps.
If you want to know how improbable things are done, ask yourself how you would do them if all the world was a game and people mattered to you about as much as ants, if you enjoyed being the unseen unknown hand that controls the peasants and it was a high art form to make them wish for their own shackles. Then you can work out from studying the dark parts of humanity, how it can be done.
Just for a little taste, do some good long research into the "Blue Whale Game" and the techniques the sick people behind it use to get otherwise average young teens to kill themselves and cover the evidence, so they can get their jollies off. This is pretty well thought out stuff done by just a smaller group of psychopaths for their own pleasure..... now add money and power... how much more could you do?