This is crazy. We have too many cooks spoiling the broth. If he had no physiological disease then what was he being treated for in the clinic recently? They said that it was not a mental illness. Now you are suggesting that according to the German prosecutors it was not physiological. So what's left?
The comment re Trial By Media is spot on. In this morning's UK Times they are still going on about the 'killer pilot'. Saying that the pilot asked him about the landing procedure and the co-pilot was alleged to have said 'Hopefully'. Now the Times is banging on that this word implies that he was planning to commit suicide. What utter tosh. It depends on the actual question asked by the pilot.
if the pilot had asked 'Can you run me through the landing procedure' ?
'Hopefully' - meaning that I hope I can remember the key actions correctly.