A Comprehensive Assessment of Deadly Mass Shootings, 1980-2018, United States

As deadly mass shootings constitute a pressing concern for Americans, the database was created to assess features and trends in all deadly mass shootings in America between 1980 and 2018. In these data, mass shootings encompass all incidents with four or more gunshot fatalities, not including the shooter, within 24 hours. Open source media reports as well as official police and court records were used to code and verify details of mass shooting incidents. The data include information on public deadly mass shooting incidents, as well as all the other deadly mass shootings that occurred over this period (e.g., those that happened in private spaces among family members, and those that occurred in public spaces but were part of another criminal event). In all, the database contains information on 719 incidents that occurred in both public and private spaces between 1980 and 2018.

鉴于致命性大规模枪击事件（mass shooting）已成为美国民众面临的紧迫公共安全关切，本数据库旨在系统评估1980年至2018年间美国境内所有致命性大规模枪击事件的特征与发展趋势。本数据集所定义的大规模枪击事件，为24小时内造成4名及以上枪击遇难者（不含作案枪手本人）的所有事件。研究通过开源媒体报道、官方警方及法庭记录对大规模枪击事件的细节进行编码与核验。本数据集涵盖公共场合发生的致命性大规模枪击事件，同时包含该统计周期内发生的其余所有致命性大规模枪击事件——例如发生在私人空间且涉及家庭成员的枪击事件，以及发生在公共场合但隶属于其他刑事犯罪的枪击事件。总体而言，本数据库共收录了1980年至2018年间发生在公共与私人空间内的719起枪击事件的相关信息。