Honestly, I have a feeling that amateur radio was used at the Capitol that day. You get a bunch of extremists (on both sides of the political spectrum) and probably 85% of them are the whacker-prepper "when all else fails" nutjobs, and this is their opportunity to dust off their Baofengs and see how they work in actual real world scenarios.
That said, was amateur radio used in the actual commission of a crime? I don't know. It's certainly not illegal to use amateur radio at a peaceful protest, or while walking/marching around in D.C. So unless the FCC and/or ARRL actually present evidence of amateur radio being used in the commission of crimes, both groups simply look like a bunch of idiots, and we have ourselves a big, fat nothingburger to munch on. Put up or shut up, FCC!
That said, was amateur radio used in the actual commission of a crime? I don't know. It's certainly not illegal to use amateur radio at a peaceful protest, or while walking/marching around in D.C. So unless the FCC and/or ARRL actually present evidence of amateur radio being used in the commission of crimes, both groups simply look like a bunch of idiots, and we have ourselves a big, fat nothingburger to munch on. Put up or shut up, FCC!