April 19, 1995: Timothy McVeigh drove into downtown Oklahoma City in a rented Ryder truck containing a fertilizer bomb that he and his army buddy Terry Nichols had made the previous day. He parked, hopped out of the truck, and walked away. Shortly after 9:00 a.m., the bomb obliterated one-third of the Alfred P. Murrah Federal Building, killing 168 people, including 19 infants and toddlers. Weaving together key elements of personal correspondence with co-defendant Terry Nichols, hundreds of hours of interviews, and thousands of government documents, by investigative reporter Andrew Gumbel and retired U.S. Marine Corps lieutenant colonel Roger G. Charles is a riveting piece of journalism and a cautionary tale for our times.