While most government agencies are trained in how to react to a mass casualty event such as a terrorist attack or natural disaster, few are prepared to deal with the psychological fallout for first responders. Preparing for the Unimaginable fills that void. This book is the product of the National Alliance on Mental Illness's work with the Newtown, Connecticut, police force in efforts to cope with the shooting at Sandy Hook Elementary school that left twenty six people, including twenty children, dead. This unique publication offers expert advice and practical tips for helping officers to heal emotionally, managing the public, dealing with the media, building relationships with other first responder agencies, and much more. Complete with firsthand accounts of chiefs and officers that have guided their departments through mass casualty events, Preparing for the Unimaginable seeks to provide practical, actionable strategies to protect officer mental health before and after traumatic events.