The politics of dating

The cases we have documented since then using the revised federal baseline reaffirm our major findings. The horrific massacre at a movie theater in Aurora, Colorado, in July 2012, another at a Sikh temple in Wisconsin that August, another at a manufacturer in Minneapolis that September—and then the unthinkable nightmare at a Connecticut elementary school that December—were some of the latest in an epidemic of such gun violence over the last three-plus decades.Since 1982, there have been at least 94 public mass shootings across the country, with the killings unfolding in 34 states from Massachusetts to Hawaii.The interactive map below and our downloadable database have been expanded with 32 additional cases from 2013-2017.Dating back to at least 2005, the FBI and leading criminologists essentially defined a mass shooting as a single attack in a public place in which four or more victims were killed.A branch of the Communist Youth League in eastern China has established a unit to help young people find romance, state media reported.The service has been set up in the Zhejiang province branch of the national organisation, which has formerly been a starting ground for many government cadres and even top national leaders.While those larger datasets of multiple-victim shootings may be useful for studying the broader problem of gun violence, our investigation provides an in-depth look at the distinct phenomenon of mass shootings—from the firearms used to mental health factors and the growing copycat problem.Tracking mass shootings is complex; we believe ours is the most useful approach.

(Mass shootings represent only a sliver of America’s overall gun violence.) For the stories of the 151 shooting rampage victims of 2012, click here, and for our groundbreaking investigation into the economic costs of the nation’s gun violence, including mass shootings, click here.Accordingly, we include attacks dating from January 2013 in which three or more victims died.Our original analysis, which covers cases with four or more victims killed from 1982-2012, follows below.And: Explore the full data set behind our investigation.Here are two charts detailing the killers’ weapons: This guide was first published on July 20, 2012.