If he was innocent then she'd be saying "today is a sad day. An innocent man has been condemned to death". Instead she says it's a sad day because of some racial issue involving jury selection. Doesn't sound like she's all that convinced of his innocence.
"That court, as did the Supreme Court, refused to grant Williams another hearing based on his argument that prosecutors violated his rights when they dismissed all potential black jurors from hearing the case."
Why should prosecutors and/or defense have the right to dismiss jurors? There are twelve on a jury so that there is diversity. Once it is established that these folk are disinterested in the outcome of the trial, they should be seated.
Letting the lawyers pick the jury helps the lawyers, helps the side with the stronger team and hurts society. Jurors' time is wasted. Juries are less diverse than they would be. Jurors with expertise in a subject are dismissed, rather than sought.
Our system is upside down.