Theory about what happened that night

My theory is that, since Tim was getting into the spiritual world, during those days in Oman he was probably using substances like ayahuasca and other rare drugs as part of some sort of spiritual retreat. His friends eventually got fed up and left (some great friends, huh?), and he ended up going to the house of that tycoon in Oman, likely because they were offering some kind of ritual for rich people involving the consumption of rare substances. Tim had a psychotic episode, and the rest is history.