JohnK, I respect your wise decision not to go further into this (as the guy has been charged and will be appearing in court) but I struggle to have sympathies for the actions of someone who may need help (mental illness, depression, personal struggles etc) when those actions place many others at risk and the kind of behaviour that was reported does place the plane at risk (and the pilots decision supports that).
I don't know what the answer is, but quite clearly, the reports are that he was drunk. If he was also on medication and also had other issues weighing him down, turps is the last think he should have been on and flying in that state is also a no-go. The only question I have, is who is responsible for assessing the ability of a pax to fly without placing an aircraft at risk?