Update: 20 Children Dead in School Shooting

NEWTOWN, Conn. (ABC NEWS) — Twenty children died Friday when a heavily armed man invaded a Newtown, Conn., elementary school, killing his mother and spraying the school with bullets. The gunman, identified as Adam Lanza, 20, was killed inside of the school. Lt. Paul Vance said 18 children died in the school and two more died later in a hospital. Six adults were also slain, bringing the total to 26. In addition to the casualties at the school, a body was also found in the shooter’s home, officials said. In the early confusion surrounding the investigation, federal sources initially identified the suspect as Adam’s older brother Ryan Lanza, 24. It is the worst shooting in a U.S. elementary school in recent memory. Click here for the latest information and details from ABC News.