The case of a woman who was found dead in a bathtub in Japan is being investigated. The woman is believed to have died from a heart attack.
The victim's family believe she was killed by her boyfriend. The man's family says he died of natural causes. The case is under investigation by Japan's National Court of Justice, which is investigating the death of the woman, who was in the bathtub at the time of her death. Her family says she died after suffering from a stroke, which was caused by stress.