The purpose of this study is to develop an evidence-based set of inductive profiles based on matched victim-offender characteristics of homicide cases. To develop these homicide profiles, we used national data from the FBI's supplementary homicide reports that were reported by law enforcement agencies for a period of 42 years, from 1976 to 2017 in the United States. The findings that emerged from the study show that female offenders tend to kill victims of the opposite gender; whereas male offenders kill more victims within their own gender. The probability of becoming a victim of homicide increases for white people and decreases for black people as the offender's age increases. Overall, offenders tend to kill victims about their own age, and as offenders get older, they are more likely to kill female victims than male victims.

中文翻译：

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根据匹配的受害者-犯罪者人口统计特征分析凶杀案

本研究的目的是根据凶杀案的受害者-罪犯的匹配特征，开发一套基于证据的归纳概况。为了开发这些凶杀案概况，我们使用了美国执法机构在 1976 年至 2017 年 42 年间报告的 FBI 补充凶杀案报告中的国家数据。研究结果表明，女性罪犯往往会杀害异性受害者；而男性犯罪者在其性别范围内杀死了更多的受害者。随着罪犯年龄的增加，白人成为凶杀案受害者的可能性增加，而黑人成为凶杀案受害者的可能性降低。总体而言，犯罪者倾向于杀死与自己年龄相仿的受害者，随着犯罪者年龄的增长，他们比男性受害者更有可能杀死女性受害者。