Nineteen hotshot firefighters died on the Yarnell Hill Fire in central Arizona on June 30, 2013 after deploying fire shelters. They were members of the Granite Mountain Interagency Hotshot Crew (IHC), hosted by the Prescott Fire Department. This report has two parts. Part One includes the fact-based Narrative of the incident and offers the Team's Analysis, Conclusions, and Recommendations. Part Two, the Discussion section, is meant to prompt discussion and facilitate learning. It explores multiples concepts and perspectives, in order to support the broader community seeking to make sense of the accident and to improve safety and resilience. Appendices provide technical details and other supplemental information.