{
  "id": 5235127,
  "title": "Study reveals distinct patterns across single-, multi-, and mass homicides",
  "url": "https://urgent.news/2026/09/03/study-reveals-distinct-patterns-across-single-multi-and-mass-homicides",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-03T03:20:41.000Z",
  "source": {
    "name": "Phys.org",
    "slug": "phys-org",
    "url": "https://phys.org/news/2026-09-reveals-distinct-patterns-multi-mass.html"
  },
  "original_language": "en",
  "account": "A recent study analyzing U.S. homicide data reveals distinct patterns across single-, multi-, and mass homicides. According to the research published in Annals of Epidemiology, intimate partner violence (IPV) often leads to mass homicide and is frequently associated with multi-victim and single-victim deaths. The study categorizes homicides into three types: single-victim (90.5% of 115,873 deaths), multi-victim (8.7%), and mass (1%), each exhibiting unique demographics and circumstances.\n\nIn 2018-2023, the majority of U.S. homicide deaths were single-victim cases, but multi-victim homicides claimed 10,123 lives across 4,789 events. This percentage of multi-victim homicide deaths is higher than previously reported from 2003-2017. Mass homicides, accounting for less than 1% of total deaths, resulted in 892 fatalities across 178 incidents, with individual cases spanning from 4 to 51 fatalities. Most mass and multi-victim homicides occurred in homes, while single homicides most often took place in public locations like streets or vehicles.\n\nDemographically, mass homicides more often involved non-Hispanic (NH) White victims and children, while single-victim and multi-victim homicides more frequently involved NH Black victims and acquaintances or friends as suspects. The findings emphasize the importance of tailoring prevention strategies to the differences among these homicide types. Patrick S. Sullivan, DVM, Ph.D., editor in chief of Annals of Epidemiology, notes that the analysis highlights how public data systems can reveal that homicide is not a single problem but several distinct issues, each with its own affected populations and precipitating circumstances. The study offers valuable insights for policymakers and interventions aimed at reducing these tragic and preventable outcomes.",
  "summary": "An updated analysis of U.S. homicide data has found that intimate partner violence (IPV) often precipitates mass homicide and is also frequently associated with multi-victim and single-victim deaths. The study categorizes homicides into single-victim, multi-victim (2–3 victims) and mass (4 or more victims, excluding the perpetrator) fatalities, revealing distinct demographics and circumstances.…",
  "key_points": [
    "Study categorizes U.S. homicides into single-, multi-, and mass types",
    "Intimate partner violence often leads to mass and multi-victim homicides",
    "Mass homicides involved mostly non-Hispanic White victims and children"
  ],
  "editors_take": "The study's findings that distinct homicide patterns exist across single-, multi-, and mass homicides means prevention strategies must be tailored to address the unique demographics and circumstances of each type.",
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}