The body of a 29-year-old nurse was parceled by post through Japan in a 2-meter-long box marked with the Japanese word for "doll".

She reportedly had more than a dozen stab wounds but no defensive injuries on her hands or arms.

Just before she went missing in March, she posted on Facebook that she was going to meet an old friend whom she had not seen for a decade. Her body was found recently in a storage lock-up in Tokyo, to which the parcel was delivered. The friend, also 29, lived with a woman of about the same age near the lock-up.