James Holmes: The University Of Colorado

James Holmes Dept: A gunman at a Connecticut elementary school killed more than two dozen people, including children, on Friday. It is among the world's worst mass shootings. Here is a look at some others:, according to Winnipeg Free Press. July 20, 2012: Twelve people are killed when a gunman enters an Aurora, Colo., movie theatre, releases a canister of gas and then opens fire during opening night of the Batman movie "The Dark Knight Rises." James Holmes, a 24-year-old former graduate student at the University of Colorado, has been charged in the deaths and fILE - In this July 21, 2012 file photo, from left: Tylecia Amos, 14; Shatyra Amos, 15; Michael Walker, 17; and Mykia Walker, 16, carry flowers to lay at a makeshift memorial across the street from the Century Theater parking lot, in Aurora, Colo. Twelve people were killed when a gunman entered an Aurora, Colo., movie theater, released a canister of gas and then opened fire during opening night of the Batman movie "The Dark Knight Rises." James Holmes, a 24-year-old former graduate student at the University of Colorado, has been charged in the deaths. AP Photo/Barry Gutierrez, File Aug. 5, 2012: Army veteran Wade Michael Page kills five men and one woman and wounds three other people, including a police officer, before taking his own life at the Sikh Temple of Wisconsin outside Milwaukee. Related Items Articles Gunman kills mother at home, then massacres 26 people at Conn. school, including 20 children (www.immigrantscanada.com). As reported in the news.