Why are pallets of bricks mysteriously appearing at protest sites?

Pallets of bricks are showing up across the country ahead of planned protests in the areas. From Kansas City to Dallas, the building material is not quite enough for any construction project but, conveniently, enough to cause mayhem once the sun goes down. 

The arsenal pre-staging is appearing suddenly in flashpoints all across the nation like Minneapolis, Atlanta, Los Angeles, New York, Seattle and Fayetteville, NC and they’re being used on police officers, private businesses and  civilians alike. 

Dallas Police Chief Renee Hall found herself targeted by the bricks and explained in a CBS interview what that was like:

CBS 11: What went wrong?

Chief Hall: I do know that my officers had the direction to make sure this was a peaceful protest and provide traffic control. We had all the streets blocked off. They had the run of the streets. Everything was peaceful. Then all of a sudden brick started hailing, hitting our squad car… hitting the officers.

So where are the bricks coming from and who is paying for them? It would take the FBI approximately five minutes to answer if they weren’t preoccupied with virtue signalling for homosexuals today:

And while it is the beginning of summer and pallets of bricks wouldn’t cause concern any other year, it is still odd that they’re being delivered like this:

See more instances below from citizen journalists:

https://twitter.com/ali/status/1266622746571800576
https://twitter.com/themikiestmikey/status/1266965110620336130