oh *(&*((**.
The pilot killed was somebody I knew and got on well with, and had a reputation as an able instructor - I'd heard a rumour that this might have been part of AAIB's findings but hoped it wasn't true and been careful not to discuss the rumour further.
What can one say - he should have known better. Much better.
And perhaps the rest of us could and should have noticed he had a problem and been more forceful about it.
The lessons are obvious and distressing.
G