Maria Chapelle Nadal is a Missouri State Senator who has been participating in the protests in Ferguson.
At a press conference on 8/13, she asked Police Chief Tom Jackson if she was "going to be tear gassed again?"
On 8/13 there was a report that she had been arrested. However, she continued tweeting throughout with no mention of her alleged arrest on her feed. Either someone forgot to tell her, or something got crossed somewhere along the line.