Analysis of two decades in the UK, where in 1997 they banned video games and mental illness:
1996: 16 children and their teacher shot dead
1997-2018: 0 shot dead 1996: 16 children and their teacher shot dead
1997-2018: 0 shot deadI have a suspicion that the handgun ban and the lack of subsequent school shootings might not be completely causal.
BTW that's not to suggest that the ban was wrong. I was entirely supportive and still am. I think the UK's approach to guns is laudable and should be encouraged elsewhere.
2001: 2,996 people killed in plane attacks
2002-2018: 0 people killed in plane attacks
In fact in 1997 the UK simply banned handguns.