> A group of the protestors locked the doors to a downtown apartment building with handcuffs and then attempted to set that building on fire.

What evidence is there that that was real? An allegation was made on Twitter, but only thing I've found that digs into the details looks like a complete debunking (see links at https://news.ycombinator.com/item?id=30336974). It's from a biased source and I'm open to any factual refutation, but I've looked for contrary reporting that digs into the details, and haven't found any. Only a lot of repetition of the original allegation.