Having watched two of these in Wisconsin in the last 6 months.... The pattern is the fatality count is always wrong and there is only one shooter.
Dunno. Talking about 100 rounds fired, 20 shot, 12 killed. Looks like only one shooter - father of student - but it’s unconfirmed. If I was a parent in this district or area, I’d be furious at the lack of real news from an official.