The mother of a woman who was arrested for allegedly mutilating the corpse of a decapitated man found in a Sapporo "love hotel" room earlier this month said her daughter was previously involved in a violent incident with him, investigative sources said Wednesday.
Hiroko Tamura, 60, the mother of Runa Tamura, was arrested on a charge of collusion and told investigators her 29-year-old daughter had been victimized by the murdered man, identified as Hitoshi Ura, the sources said.