Studies indicate that the rate at which public mass shootings occur has tripled since 2011.

nearly one-third of the world’s public mass shootings between 1966 and 2012 (90 of 292 incidents) occurred in the United States.[3][4

Gun control group: 848 people killed in mass shootings since 2009. Gun control advocates identified 156 mass shootings in the United States over the past eight years.Apr 11, 2017