Japanese former professional boxer Iwao Hakamada, who was sentenced to death for the murder of four members of a family in 1966, speaks during an interview.
Iwao Hakamada (pictured giving an interview in 2018) spent 46 years in prison. He was the world's longest-serving death row inmate.
  • Iwao Hakamada was acquitted after 46 years on death row for a 1968 quadruple murder.
  • Hakamada was the longest-serving inmate on death row of any prisoner worldwide.
  • Japan and the US are the only G7 countries that use capital punishment.

An 88-year-old man has been acquitted of multiple murders in Japan after spending 46 years on death row — most of them in solitary confinement.