Forensic Medicine Unit, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy.
Radiology Unit, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy.
Int J Legal Med. 2019 Sep;133(5):1469-1476. doi: 10.1007/s00414-019-02085-2. Epub 2019 Jun 14.
A single gunshot (or multiple) does (do) not necessarily lead to immediate loss of consciousness or rapid neurological deficits, so the victim may be able to repeatedly pull the trigger before achieving the lethal effect. Despite multiple gunshot wounds can lead to the suspicious participation of other person to the death of the victim, in the medico-legal literature suicides with multiple gunshot wounds are reported, demonstrating the ability of the victim to act after two or more gunshots. In this case, a 47-years-old man was found dead in a pool of blood in the kitchen of his house. According to findings and analysis, the victim modified a single-shot, pneumatic toy gun branded "Condor" Cal. 7 mm (a gun that is made mainly with "ZAMAK" zinc-based alloy, designed to shoot one soft-polymer bullet at a time, with an initial kinetic energy lower than 1 Joule) into an improvised firearm weapon. With this gun, the victim achieved shooting of two bullets into his head, both entering from the right temporal region of his head, with one stopped in the left occipital lobe and the other one in the left temporal lobe. His death was caused by cranium-meningo-encephalic gunshot wounds. The conditions supporting the hypothesis that the victim was able to fire two shots to his head before the onset of incapacitation (the type of bullets used, the location of injuries and their consequences) and the characteristics that typically allow to distinguish the manner of death (suicide vs homicide) were evaluated. Based on all the collected elements, it was possible to confirm that suicide was the manner of death. This case underlines the importance of evaluating all available elements (post-mortem imaging, autopsy and toxicological findings, ballistics and neuropathological evaluations) to distinguish suicide from homicide and to prevent incorrect conclusions.
一声枪响(或多声枪响)不一定会导致立即失去意识或迅速出现神经功能缺损,因此受害者可能能够在达到致命效果之前反复扣动扳机。尽管多发枪伤可能导致其他人员涉嫌参与导致受害者死亡,但在法医学文献中,有报道称多发枪伤自杀,这表明受害者在遭受两枪或更多枪伤后仍有能力行动。在这种情况下,一名 47 岁男子被发现死在其房屋厨房的血泊中。根据调查结果和分析,受害者将一支单发、气动玩具枪“秃鹰”牌 Cal.7 毫米(一种主要由“ZAMAK”锌基合金制成的枪支,设计用于每次发射一发软聚合物子弹,初始动能低于 1 焦耳)改装成自制枪支。用这把枪,受害者将两发子弹射进自己的头部,两发子弹均从头部右侧颞区进入,一发子弹停留在左枕叶,另一发子弹停留在左颞叶。他的死亡是由颅脑膜-脑枪弹伤引起的。支持受害者在丧失能力之前能够向自己头部射击两枪的假设的条件(所用子弹的类型、受伤部位及其后果)和通常允许区分死亡方式(自杀与他杀)的特征得到了评估。基于所有收集到的元素,可以确认自杀是死亡方式。这一案例强调了评估所有可用元素(尸检影像学、尸检和毒理学发现、弹道学和神经病理学评估)的重要性,以区分自杀与他杀,并防止得出错误的结论。