It was a case that gripped Japan. Shimoyama Sadanori, head of Japan National Railways, was found dead on the tracks of a commuter rail line one July morning in 1949.
The day before he disappeared he'd released a list of 30-thousand rail employees who were about to lose their jobs. Was it suicide - or murder?
Kathryn speaks with David Peace, who has written three books set in the post-war period of occupation in Japan.