"In the vein of Dave Cullen's Columbine, the first comprehensive account of the Sandy Hook tragedy--with exclusive new reporting that chronicles the horrific events of December 14, 2012, including new insight into the dark mind of gunman Adam Lanza. Twenty-six people dead; twenty of them schoolchildren between the ages of six and seven. The world mourned the devastating shooting at Sandy Hook elementary school in Newtown, Connecticut in December 2012....