In the letter, Kamata provoked police by telling them to "catch [him], if they can", naming the sushi restaurant that he took the victim before killing her and what body parts he had cut off,(May 15, 1995) Mainichi Shimbun: "Suspect K proclaims innocence in murder of Mrs. B" (in Japanese) providing information only the killer could have known. When the Nara Prefectural Police traced the girl's whereabouts on the day of her supposed disappearance, they learned that she had been seen visiting the exact same sushi restaurant with an unidentified middle-aged man. When the circumstances were deemed consistent with the letter writer's claims, police concluded that the killer had indeed written it.(May 10, 1995) Yomiuri Shimbun: "Suspected thief's fingerprint matched to Nara dismemberment murder 10 years ago, connected to three other murders" (in Japanese)
