Review for Mondays discussion

The math of mass shootings

By Bonnie Berkowitz, Lazaro Gamio, Denise Lu, Todd Lindeman and Kevin Uhrmacher

The death tolls change, the places change: Nine in a church, 23 in a restaurant, 26 in an elementary school, now 14 at a holiday party. The faces in the memorial photos change the most.But the weapons are the common denominator. Mass killings in the United States are most often carried out with guns, usually handguns, most of them obtained legally. There is no universally accepted definition of a mass shooting, and different organizations use different criteria. In this piece we look at the deadliest cases, beginning Aug. 1, 1966, when ex-Marine sniper Charles Whitman killed his wife and mother, then climbed a 27-story tower at the University of Texas and killed 14 more people before police shot him to death. The numbers here refer to 121 events in which four or more people were killed by a lone shooter (or two shooters in three cases). An average of seven people died during each event, often including the shooters. [The number of ‘mass shootings’ in the U.S. depends on how you count] This data — compiled from Mother Jones; Grant Duwe, author of “Mass Murder in the United States: A History,” and Washington Post research — does not include gang killings, shootings that began as other crimes such as robberies, and killings that involved only the shooter’s family.Notes: Death tolls include all victims killed by shooters within a day of the main shooting; a handful of those were stabbed or killed in another way. Totals also include people who later died from injuries received during the shootings. Sources disagree on some ages in this dataset.

Additional work by Richard Johnson, Dan Keating and Ted Mellnik.