The long and the short is... We don't know. The papers didn't know. But they chose to decide the truth without knowledge. Now it may be that it turns out he was a depressive and those same papers will say 'ah, we told you so, we were right to run the headlines we ran.' To which the answer is 'no you weren't.' If he had just been told he had cancer, and a note to that effect had been found, would we be 'blaming' cancer for the deaths of those poor people who perished in the Alps? This is reporting that belongs in the dark ages along with witchcraft.