shot, point-blank by her fellow high school senior who then killed himself. cnn is outside that school in centennial, colorado. casey, give us her name and tell us how she got caught up in this entire mess. >> reporter: the sheriff said she was in the wrong place at the wrong time. for the first time, he named the victim in this shooting. 17-year-old claire davis, a senior at arapahoe high school. she remains in critical condition at a local hospital with severe trauma to her head, the result of a point-blank wound from a shotgun fired by the shooter in this case, karl pierson. the sheriff gave a vivid description of how this unfolded over one minute and 20 seconds. he described a shooter who came to the school armed to the tee. >> we have had the opportunity to view security video from the