Abstract：
This study explores the offender, victim, and environmental characteristics that significantly influence the number of days a sexual homicide victim remains undiscovered. Utilizing a sample of 269 cases from the Homicide Investigation Tracking System database an in-depth analysis was conducted to unveil the factors contributing to the delay in the discovery of victims\' bodies. The methodological approach involves applying a negative binomial regression analysis, which allows for the examination of count data, specifically addressing the over-dispersion and excess zeros in the dependent variable - the number of days until the victim is found. The findings reveal that certain offender characteristics, victim traits, and spatio-temporal factors play a pivotal role in the time lag experienced in locating the bodies of homicide victims. These findings have crucial implications for investigative efforts in homicide cases, offering valuable insights that can inform and enhance the efficacy and efficiency of future investigative procedures and strategies.
摘要：
这项研究探讨了罪犯，受害者,和环境特征显着影响性凶杀受害者未被发现的天数。利用凶杀案调查追踪系统数据库中的269例样本，进行了深入分析，以揭示导致延迟发现受害者尸体的因素。方法论方法包括应用负二项回归分析，它允许检查计数数据，专门解决因变量中的过度分散和过量零-找到受害者之前的天数。调查结果表明，某些罪犯的特征，受害者特征,时空因素在定位凶杀受害者尸体所经历的时间滞后中起着关键作用。这些发现对凶杀案的调查工作具有至关重要的意义，提供有价值的见解，可以告知和提高未来调查程序和策略的效力和效率。
