Glock pistols have been used in mass shootings including the 2007 Virginia Tech shooting, the 2011 Norway attacks, the 2012 Aurora shooting, the 2012 Sandy Hook Elementary School shooting, the 2015 Charleston church shooting, the 2016 Orlando nightclub shooting, and the 2018 Pittsburgh synagogue shooting. Experts on gun policy, mass shootings, and defense training have cited factors such as reliability, ease of use and availability. The criminal use of these weapons has led to calls for increased gun control in the United States.