在针对11岁男童足立勇气死亡事件的持续调查中，京都警方正在调查其37岁的父亲足立勇纪（此前因弃尸罪被捕）。调查显示，他涉嫌在网上搜索尸体处理方法，并多次转移尸体以拖延案发时间。当局已对与本案有关的一处公共厕所进行了现场勘查。
2026年4月，11岁男童足立勇气的尸体在京都府南丹市的山区被发现。其父亲、37岁的足立勇纪因涉嫌弃尸被捕，并承认涉案。目前，警方正就其父亲为隐瞒尸体所做的额外企图展开调查。
据《日本时报》报道，足立曾搜索弃尸方法，并为妨碍搜查而在市内多次转移尸体。调查人员检查了一处被认为与案件有关的公共厕所。
关于该男童3月失踪及随后死亡的调查仍在继续，其动机及具体案情细节尚待查明。此前有消息称，其父已承认曾勒死儿子。
Yūki Adachi, the adoptive father of 11-year-old Yuki Adachi, joined the search for his missing son in Kyoto while possibly trying to delay discovery of the body, sources said.
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Police in Izumo have arrested a 49-year-old man on suspicion of abandoning two bodies believed to be those of his father and brother.
Police in Tsukuba City, Ibaraki Prefecture, have arrested a 27-year-old man on suspicion of non-consensual sexual intercourse with a 12-year-old girl in a hotel in Kariya City in February.
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Toyoji Sudo, mayor of a city in Ibaraki Prefecture, was found dead in a drainage ditch, with police believing the death to be a suicide.