Probably not LRAD. It seems more consistent with another type of “crowd control” device, the microwave based “Active Denial System”, which uses microwaves to burn people’s skin:
https://jnlwp.defense.gov/About/Frequently-Asked-Questions/Active-Denial-System-FAQs/
https://www.popsci.com/story/technology/heat-weapon-active-denial-system-ads-lrad-explained/
This is some sick shit.
Governments worldwide have turned on their citizens.
What’s up with that?