Once he is accused of breaking the law he's no longer a juror and becomes a defendant like any other. In fact if you read the article he already has an attorney. And he did break the law, jurors swear to abide by the laws of the court and he broke that oath.
If by Fair and PUBLIC trial you mean that what this juror did was correct I completely disagree. The trial IS public, its open anyone can attend the proceeding
This is as much for the benefit of the defendants
Read the Article at HuffingtonPost