Regarding Celia, this is disgusting but not surprising behaviour by Bolivia.
Ultimately it's the Captain (and Owner), who is responsible, the buck stops with him, and in such a Latin American country, dominated by "macho" culture, and fairly poor CRM, it's pretty obvious that she stood no chance in stopping this flight.
Who knows what was said, end of the day en-route the flight crew should have had enough SA to see that they was going below Final Reserve, gone to alternate refuelled or / and made a Mayday call prior to going into their final reserve.
Then again no surprise, easier to blame Celia who is on $300 a month, kind of makes you wonder with the article about the Captains bodies hero return in Bolivian news, ironic.
No doubt the Captain did not set out that day to end up dead, and nobody is saying his a bad person, but what he did on this day was criminal, it was a completely avoidable.