Related events:

1. Tuesday 10th of March 1936 (+) — Boxer and presumed mass murderer Iwao Hakamada is born
   

2. Thursday 30th of June 1966 (x) — After a fire at the home of one of his bosses, the bodies of the executive, his wife, and two children were found all stabbed to death, presumed by Boxer and presumed mass murderer Iwao Hakamada
   Hakamada was interrogated and in August 1966 he was arrested based on his confession and a tiny amount of blood and gasoline found on a pair of pajamas he owned. According to his lawyers, Hakamada was interrogated a total of 264 hours for as many as 16 hours a session over 23 days to obtain the confession. They added that he was denied water or toilet breaks during the interrogation. "I could do nothing but crouch down on the floor trying to keep from defecating," Hakamada later told his sister.

3. Wednesday 11th of September 1968 (x) — Boxer and presumed mass murderer Iwao Hakamada is sentenced to death for the presumed murder of his boss, his boss' wife and two children
   

4. Thursday 27th of March 2014 (x) — Boxer and presumed mass murderer Iwao Hakamada is released from prison after spending 46 years in solitary confinement on death row
   Hakamada was sentenced to death for the stabbing to death of his boss, his boss' wife and two children. A 2008 DNA test suggested the blood on the clothing used as evidence did not match Hakamada's.