I think the deal is they spike at this time of year.

I legit wouldn't be surprised if years from now we find out a lot of school shootings are triggered by some weird variant of seasonal affective disorder.

You know, some uniquely alienated vulnerable guy gets maddeningly depressed during the winter and resents/blames the people around them for the depression, then they get a whiff of cut grass and some sunshine and *whoosh* manic killing spree.

Only one I looked up off the top of my head that wasn't March/April was Parkland- but that was in Florida, where winter is a bit different.

I'm no expert and I'm definitely drawing conclusions that should not be drawn based on what I looked up, but... I would not be surprised.