Police said Wednesday they have identified the tape-bound corpse of a man found in a cemetery in Suzuka in the prefecture as that of a 53-year-old man whose mother and brother were found slain over the past few days.
Police said Katsumi Kato's ankles were bound by adhesive tape, but they did not disclose the cause of death and added it was not immediately clear if he had committed suicide or was murdered.
Police were looking for the man after his mother, Shizue, 92, was found slain Sunday in a graveyard in Yokkaichi, and his brother, Nobuyuki, 50, was found murdered in the city on Monday.
In a letter to a nursing home in Suzuka where his mother lived, the 53-year-old wrote, "It was tough taking care of my mother."
He handed the letter to staff at the home Saturday when he took his mother out of the facility, police said.
The mother was found dead in a cemetery Sunday morning in Yokkaichi, while Nobuyuki's body was found in a car on a forest road Monday with his hands and feet bound and his head wrapped in cellophane. Both died from suffocation.
Police said the three had lived together until Shizue entered the nursing home six years ago. The brothers had lived separately since then and had become estranged, police said.