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KMID : 0357820140380030121
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Korean Journal of Legal Medicine
2014 Volume.38 No. 3 p.121 ~ p.125
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A Case of Dyadic Death Associated with Helium Gas: An Autopsy Case Report
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Ha Hong-Il
Lim Seung
Kim Jeong-Mok
Park So-Hyung
Yang Kyung-Moo
Kim Seong-Ho
Kim Yu-Hoon
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Abstract
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A 39-year-old man, his 35-year-old wife, and their 13-year-old daughter were found dead in their home. The man and his daughter were found lying in her bedroom, with his head wrapped in a plastic bag connected to four helium gas cylinders by green polypropylene tubes. Fragments of the burnt ignition briquette were found in the bucket located at her feet. His wife was found in a decomposed state lying on her right side in her bedroom. Autopsy findings for the man were unremarkable except for cherry pink lividity; the blood carboxyhemoglobin concentration was 73%. Autopsy findings were unremarkable for the woman as well, except for a few petechial hemorrhages and conjunctival congestion. The daughter showed no definite abnormalities; however, her blood and lung contained helium gas. The deceased man’s suicide note, evidence gathered at the scene, and postmortem examination revealed that this was a case of dyadic death.
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KEYWORD
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Asphyxia, Autopsy, Helium, Homicide-Suicide
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