Earlier quoted context omitted.
I don't think it is clear at all that "Columbine-like shooting are an American phenomenon". The UK has had several massacres where in each case over a dozen were killed with no apparent motive (Dunblane in 1996, Cumbira in 2010), and there have been several smaller scale incidents along similar lines. The same is true in other countries around the world - I'm just citing those I'm most familiar with. The US certainly…
> The UK has had several massacres where in each case over a dozen were killed with no apparent motive (Dunblane in 1996, Cumbira in 2010), and there have been several smaller scale incidents along similar lines. This is disingenuous. There have not been 'several cases where over a dozen were killed, and several smaller scale incidents'. There have been exactly three in recent UK history: Dunblane (16 schoolchildren…
Of course, going by what happened to get into a Wikipedia list and what you happen to recall is pretty slim as evidence.