As they found drugs in his home, would be interesting which one.
Not just interesting, but CRUCIAL.
... if psychotic people are missdiagnosed with "depression" ! Recipe for disaster.
The problem is MUCH worse than this - even if depression etc. is correctly diagnosed, treatment with common "anti-depressants" can lead to suicidal impulses, (more rarely) psychotic episodes, mood instability, and other phenomena. The risk is particularly high after such drugs are DISCONTINUED.
Even non-psychotropic drugs - e.g. prescription pain killers, cough syrup, etc. - can have significant psychiatric effects.
Again - sorry to hammer the point - we need to know the name of EACH AND EVERY DRUG OWNED OR USED BY the dead Germanwings FO.