The 6-year-old boy whose body was found Monday inside a plastic bag floating in a canal here was seen by his grandmother on the morning of Aug. 7 bleeding from his mouth while lying on a futon at his parents' apartment, police said Thursday.
Police on Tuesday arrested the mother, Tomoko Seta, and her husband, Takeshi, both 24, on suspicion of wrapping Kyoichi Seta's body in tape, putting it in a black plastic bag and dumping it in the Kitabori canal in Amagasaki's Ohama industrial zone.
Since their arrests, the couple have maintained they did not physically abuse Kyoichi and have denied any involvement in his death.
They reported the boy as missing to police on the night of Aug. 7.