In Fact....

Re: mass shooters...

Here's the perfect way to make an impact (gratuitous - no payment required.)

Assemble all of your weapons and ammo in the lobby of the place you wish to attack.  Write a note and pin/tape it somewhere on your body/face where it is immediately visible that says, "See what I could have done?! - You should be grateful and laud my name (instead of reviling me.)"

And then you eat the gun.

Brilliant, no?