Sorry, I don't speak Iowa. Let me try again. It isn't hard to believe that had Davis been brought to trial then the defense would try and get at least one person on the panel who did support the confederate cause. Such a person wouldn't have voted guilty regardless of what evidence the prosecution presented. And jury nullification such as that has had a long history in American jurisprudence. Throughout the last part of the 19th century and well past the middle of the 20th southern juries readily acquitted white defendants accused of crimes against blacks. And, of course, there is the OJ trial which some believe to be jury nullification at it's worst.
Try it sometime, because Kansan seems to be too confusing for normal people to follow. First you say that the Gov't has a long history of insuring conviction by stacking juries, then claim to have been saying that the defense attornies have a way of introducing at least one spoiler.
Figure out which one you mean and ping me back.