The arrested Roblox developer was later identified as Mikhail Jacob Olson, also known as Simbuilder. Per the Chronicle, Olson was taken in (and later charged) for having a concealed firearm in his vehicle, along with “possession of armor-piercing munition and a large capacity magazine activity.”
Fuck, the dude was ready to commit mass murder. Anyone got more details on him and/or why he might have wanted to kill people there?