My friend John wrote on Facebook that if you read "To Kill a Mockingbird" in school, you probably thought it was unfair when Tom Robinson was wrongly accused of rape and later killed after trying to escape jail when a jury convicted him anyway. Well, in the nonfictional case of Walter Scott's murder, an African-American man was executed and the murder was filmed. And a jury still wouldn't convict a white police officer who executed him and then lied about Scott having a gun in his possession. People keep telling us to soldier on -- and have the audacity to tell blacks they need to "wait for the system." But having already seen this exact same thing happen with Rodney King while I lived in Los Angeles -- a quarter century ago -- I'm more convinced than ever that there truly is no hope. If "all lives" truly matter, people, then why doesn't Walter Scott's?