James Holmes (mass murderer) From Wikipedia, the free encyclopedia James Eagan Holmes (born December 13, 1987) is an American mass murderer responsible for the 2012 Aurora, Colorado shooting in which he killed 12 people and injured 70 others (62 directly and eight indirectly) at a Century 16 movie theater on July 20, 2012.https://en.wikipedia.org/wiki/James_Holmes_(mass_murderer)
Mass murder is the act of murdering a number of people, typically simultaneously or over a relatively short period of time and in close geographic proximity. The FBI defines mass murder as murdering four or more people during an event with no "cooling-off period" between the murders.
- List of Rampage Killers
Mass murders committed using grenades. Only the first 15...
- By terrorist organizations
Many terrorist groups in recent times have used the tactic...
- By cults
Certain cults, especially religious cults, have committed a...
- By individuals
Mass murderers may fall into any of a number of categories,...
- Criticism of the analytical category "mass murder"
Commentators have pointed out that there are a wide variety...
- List of Rampage Killers
James Holmes (mass murderer) From Wikipedia, the free encyclopedia James Eagan Holmes (born December 13, 1987) is an American mass murderer responsible for the 2012 Aurora, Colorado shooting in which he killed 12 people and injured 70 others (62 directly and eight indirectly) at a Century 16 movie theater on July 20, 2012.
For serial killers see: List of serial killers by number of victims For mass murderers and spree killers see: List of rampage killers For dictators see: List of dictators by death toll
The Hungerford massacre was a series of random shootings in Hungerford, England, United Kingdom on 19 August 1987, when 27-year-old Michael Robert Ryan, an unemployed antiques dealer and handyman, shot dead 16 people, including an unarmed police officer and his own mother, before shooting himself.
The Hamilton Avenue murders is the colloquial name for the mass murder of seven people in a house at 560 North Hamilton Avenue in Indianapolis, Indiana, on June 1, 2006.
Herman Webster Mudgett (May 16, 1861 – May 7, 1896), better known as Dr. Henry Howard Holmes or H. H. Holmes, was an American serial killer. Despite his confession of 27 murders after the Pitezel trial awaiting execution, Holmes was convicted and sentenced to death for only one murder, that of accomplice and business partner Benjamin Pitezel.
A film loosely inspired by the Houston Mass Murders, Freak Out, was released in 2003. The film was directed by Brad Jones , who also starred as Corll. This film largely focuses upon the last night of Corll's life, prior to Henley shooting him and contacting authorities. 
Definitions. There are varying definitions of a mass shooting. Listed roughly from most broad to most restrictive: Stanford MSA Data Project: 3+ shot in one incident, at one location, at roughly the same time, excluding organized crime, as well as gang-related and drug-related shootings.