The guy that did it was a loser
Notice how Russian people didn't freak out and whine for months about the school shooting, they didn't riot in the streets in favour of gun control, they didn't beat Christians to death for saying "thoughts and prayers", they didn't call for a ban on "violent video games", they didn't imprison everyone they deemed "mentally unfit", they didn't demonise their enemies, and they didn't blame Putin. Meanwhile here in the USA after the less deadly Parkland shooting months prior to this one, I was shunned from society and treated as lower than a pig because I'm "mentally ill" and I play "violent video games" even though I've never committed any act of violence in my life. Worse yet, I was forcibly sent away to an institution against my will because this asshole "consultant" was panicking and thinking I'm a mass shooter, all because he believes the news media's lies.