Their company is run by scammers it seems. Louis Rossman's videos are informative.
Few are as intriguing as the hundred or so Roman dodecahedrons that we have found. We know next to nothing about these mysterious objects—so little, in fact, that the various theories about their meaning and function are themselves a source of entertainment.
^ This ancient dodecahedron found in Avenches, Switzerland, once the Roman city of Aventicum. Woudloper/Wikimedia/CC BY-SA 3.0
The people dismissing this somewhat miss the bigger picture, that statistically this had to happen because there are so many like him there.
Though I'm not sure why this guy calls the act 'fantastic', I doubt even the shooter thought what he did was fantastic, unless I'm out of the loop...