There needs to be a broad spectrum approach/audit. At an Industry and Company level. The catchphrase ' It's legal' has been used for far too long, lip service is paid to things like CRM (sorry NTS because it's all new) - FRMS programs, which plot complete and utter horses%it, to keep you in the safezone and legal. Rubbish rostering/recovery practices, box ticking training programs, a continuous supply of irrelevant Self Learning Modules (which must be done in your own time)............... the list goes on. The general approach to crew/employee welfare / general respect level in the industry has taken a steep dive in recent years and unfortunately we have let it by continuing to accept it. In turn 'some' of the employers have taken this as normal.
1 in a million, maybe. Very sad indeed. Could it be prevented? The door/2 crew rule may not be the answer.