Bloodstains near a shoe rack in the home of a man suspected of the frenzied stabbing of an 11-year-old boy in Kinokawa, Wakayama Prefecture, last week have been confirmed as the victim's, investigative sources said, citing DNA analysis.

Although the suspect, 22-year-old Oshu Nakamura, has denied killing or even knowing the victim, who lived 80 meters away, police believe the bloodstains may prove he was at the scene when Toshi Morita died Thursday afternoon at the hands of an attacker with multiple bladed weapons.

The sources also said traces of blood were found in the toilet of Nakamura's house but not in the bathroom or bedroom. Parts of goggles have also been recovered from his home.