The Death of a Police Officer in the Capitol

John Avlon: The man who attacked the police officer in the Capitol steps, got just over four years in prison. He was captured on video that day saying, quote, every single one of those Capitol law enforcement officers, death is the remedy. There's a pattern here, John, that we're seeing. You can read about it here in New York or all over the country where somebody who went to the Capitol based on something they'd heard from Donald Trump did carry it out of crime. It will be fascinating years from now when historians look back and I wonder if, what was the precondition in American society?Avlon: What was the sickness that Donald Trump was able to