This study examines homicide clearance rates in the United States using the FBI's supplementary homicide reports data spanning from 1976 to 2017. The goal of this study is to examine the effects of circumstances in which homicides occurred on homicide clearance rates, and the effects of victim's race, age, and gender on homicide clearance rates. The analyses are based on 769,753 total homicide cases that were reported to the FBI. The actual data set includes information for 757,801 victims and 513,863 offenders total. The results of this study show that a typical profile of a homicide victim whose case is more likely to remain unsolved is that of a black male between the ages of 21 to 30 who is killed in a juvenile gang-related killing circumstance. By gender, this study shows that the clearance rate for homicide cases involving female victims is 8.4% higher than for male homicide victims.

中文翻译：

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1976-2017 年美国的凶杀案清除率：检查凶杀案清除率相对于它们发生的情况。

本研究使用 FBI 的补充凶杀报告数据从 1976 年到 2017 年检查了美国的凶杀案清除率。本研究的目的是检查凶杀案发生的情况对凶杀案清除率的影响，以及受害者种族的影响、年龄和性别对凶杀案清除率的影响。这些分析基于向 FBI 报告的 769,753 起凶杀案。实际数据集包括总共 757,801 名受害者和 513,863 名罪犯的信息。这项研究的结果表明，凶杀案受害者的典型特征是一名 21 至 30 岁的黑人男性，他在与少年帮派有关的杀戮环境中被杀，其案件更有可能悬而未决。按性别，