How Did They DO That? Tweeting From the Jury Box!

It is reported that an Arkansas juror tweeted from the jury box in a death penalty case currently on appeal.
Only after several tweets was the juror discovered. The trial judge did not dismiss the juror (or another that was sleeping) because the tweets were about the juror's feelings.
For news stories, and there are many as it was reported by AP, just search on Google:

Arkansas Juror Tweets Death Row Case