Subs. I hope to hear the update about this.
Lots of evidence that prosecutors will dismiss black jurors for the most ridiculous (and contradictory) reasons that others are never subject to. If anybody is interested I can dig through my bookmarks and find some articles on it. The New Jim Crow has a section addressing this issue. In short, anything besides a prosecutor saying "These ******s are dismissed from the panel BECAUSE they are black" doesn't fit the bill of racial bias.
And surprise surprise, when black folks are on a jury, the conviction rate ends up being lower and the death penalty is applied less frequently. This issue gets left off of the table when we talk about BlackLivesMatter and criminal justice reform.