RT Article T1 An Analysis of Neighborhood Characteristics Associated with Single-Victim, Multi-Victim, and Mass Shootings JF Victims & offenders VO 20 IS 3 SP 423 OP 440 A1 Heinzeroth, Robert Drew LA English YR 2025 UL https://krimdok.uni-tuebingen.de/Record/1928052916 AB Despite the growing prevalence of mass shootings, scarce research has examined their relationships with neighborhood-level attributes such as sociodemographic or environmental characteristics. This study used negative binomial regression models to examine and compare how sociodemographic factors and the built environment were associated with neighborhood counts of single, double, triple, and mass shootings in the city of Philadelphia, PA during a six-year period (2018–2023). Effects varied both within and between predictors across models. The results demonstrate that neighborhood-level characteristics associated with mass shootings may diverge from those related to other shootings, deviating in some cases from the extant gun violence research. K1 Crime Pattern Theory K1 Social Disorganization Theory K1 Environmental Criminology K1 land use K1 Shootings K1 Gun violence K1 Mass shooting DO 10.1080/15564886.2024.2415316