Uncovering Racial Violence During Jim Crow

In her new book, By Hands Now Known, civil rights lawyer and professor Margaret Burnham reports on little-known cases of racial violence in the Jim Crow era, including crimes that went unreported and murderers who were never punished. Over 15 years, the project's researchers have chronicled roughly 1,000 murders. David Bianculli reviews 11 Minutes, a documentary about the 2017 mass shooting in Las Vegas.