A young construction worker hired to build the new National Stadium, the main venue for the 2020 Tokyo Olympics and Paralympics, committed suicide in March, a lawyer representing his relatives said. In the month before the 23-year-old man died, his overtime was found to have surpassed 200 hours. His family has filed a petition with a Tokyo labor standards inspection office to have the death certified as a case of karoshi (death by overwork), claiming he developed depression from exhaustion and killed himself as a result.