The first announcements by the police to the 2nd and Burnside crew said that anyone could go without consequences if they would get up and leave quietly, heading north. The police did allow several protesters seated in the intersection to do this.
A transgendered woman decided to leave. At first, like several others, she headed in the incorrect direction and police pointed for her to head North. She turned and headed north. Then, she was intercepted by other police, who arrested her. She was quite obviously trying to leave, and she was leaving politely. Many others had been allowed to depart in this manner right before her, yet she was detained.
The only explanation, I can think of, is that she was arrested only because she was transgendered. I am outraged.