With the numbers of rioters around the perimeter each evening in the thousands, they could have arrested... thousands.
I suspect the feds took the "creme de la creme", where they had an abundance of evidence and the most egregious.
The drone arrest is particularly important to follow thru on to conviction. And/all rioters behind the green lasers I'd hope fall into this category as well.
“all rioters behind the green lasers”
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That was beyond criminal. They need to be put away forever. And make some good friends with some large men who will...well, you know. LOL!