Fumiko Yamamoto still vividly remembers the moment she entered a gymnasium-turned-morgue as a nurse in the aftermath of the 1985 Japan Airlines crash.

As she passed through the blackout curtain, ¡°something heavy pressed down on my shoulders,¡± recalled Yamamoto, now 82. ¡°(That feeling) still remains in my heart. I felt it might have been the souls of the deceased.¡±

The crash remains the world¡¯s deadliest single-aircraft accident, with 520 passengers and crew members losing their lives. The enormous impact of the crash and subsequent fires left many victims¡¯ bodies badly damaged, with some missing body parts or burned beyond recognition.