On the evening of July 7, 2016, protesters gathered in cities across the nation after police shot two Black men, Philando Castile and Alton Sterling. As officers patrolled a march in Dallas, a young man stepped out of an SUV wearing a bulletproof vest and carrying a high-powered rifle. He killed five officers and wounded eleven others.

It fell to a small group of cops to corner the shooter inside a community college, where a fierce gun battle was followed by a stalemate. The crisis negotiator Larry Gordon, a twenty-one-year department veteran, spent hours bonding with the gunman-over childhood ghosts and death and shared experiences of racial injustice in America-while his colleagues devised an unprecedented plan to bring the night to its dramatic end.

Thompson’s minute-by-minute account includes intimate portrayals of the negotiator, a surgeon who operated on the fallen officers, a mother of four shot down in the street, and the SWAT officers tasked with stopping the gunman. This is a deeply affecting story of real people navigating a terrifying crisis and a city’s attempts to heal its divisions.