On June 22 Tokyo police arrested a 15-year-old boy for the murder of his parents.
The bodies were found on June 20 after an explosion in the family's apartment. Police determined that the deaths occurred before the explosion. The boy's father was hit on the head and stabbed several times and his mother was stabbed dozens of times.
The boy said, "I thought I'd kill my father because he'd made fun of me. My mother was always doing hard chores and I felt sorry for her. She'd said she wanted to die, so I killed her."