We mapped mass killings from gun violence and from Islamic terrorism in the U.S. throughout 2015. Unsurprisingly, acts of terror made up only a small fraction of mass shootings, and those shootings are just a sliver of overall gun homicides this year. Statistics are drawn from the United Nations Office on Drugs and Crime, Small Arms Survey and Gun Violence Archive.
America's Gun Violence Problem In 2015 — In Charts
It had very little to do with Islamic terrorism.