This is a really gripping segment. I spend a lot of time in the history books, and looking at this case, I've just been struck by how much the country has changed. These sorts of killings used to happen with shocking regularity in the post-bellum South, without any trial and without any real sense that there should be a trial. It's not a perfect world, but it is very different one.
Light pollution has taken away our ability to see the stars. Can we still save the night sky?