No. It’s shooting within the event and/or near it but not at it or any of the participants. The phrase “shot up” infers that the subject was the target.
But I get the sentiment of wanting to phrase it in a way that conveys the most amount of danger and insanity.
Someone at a kids’ event shoots a gun “at least a dozen times” — that’s not shooting up the event?
No. It’s shooting within the event and/or near it but not at it or any of the participants. The phrase “shot up” infers that the subject was the target.
But I get the sentiment of wanting to phrase it in a way that conveys the most amount of danger and insanity.