I found this theory interesting. Dudes based and has been right about everything so far. https://twitter.com/chrissaccoccia1/status/1456993172496609284
Which brings us back to the 5G thing. Don't know if he's right but it at least deserves some consideration. If it's possible then it makes me think how many they kill at once.
A wave of people don't cause heart attacks. You have to ask yourself "Why did so many have heart attacks?". I've been to a Mardi Gras and its way more packed than that concert.