According to the findings of a group tasked with investigating the mysterious disappearance of Malaysians Flight MH370 in March 2014, the pilot flew the jet plane to an altitude of 40,000 ft, thereby depressurising the cabin's oxygen supply - killing the crew and all 238 passengers on board
- before plunging into the depths of the Indian Ocean, where the Boeing 777 smashed in smithereens on impact.
https://www.thesun.co.uk/news/931896...-oxygen-crash/ ...
Why, indeed?
question remains unanswered.