Major shooting incidents in the United States
April 2, 2012 - A gunman kills seven people and wounds three in a shooting at a Christian college in Oakland, California.
July 20, 2012 - A masked gunman kills 12 people and wounds 58 when he opens fire on moviegoers at a showing of the Batman film "The Dark Knight Rises" in Aurora, a suburb of Denver. A 24-year-old former university student is charged in connection with the rampage.
Aug. 5, 2012 - A gunman kills six people during Sunday services at a Sikh temple in Oak Creek, Wisconsin, before he is shot dead by police.
Dec. 11, 2012 - A gunman opens fire inside an Oregon shopping mall, killing two people and wounding one. He then kills himself.
Dec. 14, 2012 - A heavily armed gunman kills at least 20 children and six adults at an elementary school in Newtown, Connecticut, and a body is found elsewhere in the town. The gunman is also dead.