Cary Aspinwall and Dave Boucher are investigative reporters for The Dallas Morning News. They deserve a Pulitzer Prize for an article written last summer that apparently no one in America has read, which is why I am summarizing it here today. It was about a man named Tony Timpa who cried for help more than 30 times as Dallas police officers pinned his neck to the ground. Before he died, Timpa shouted repeatedly, “You’re gonna kill me!†And kill him the police officers did. After Timpa became unconscious, the officers who had him cuffed assumed he was asleep. As the minutes...