He was there to make a movie. Usually there is a lot of ready-made company on a movie set: crew, other actors, etc. I’m not sure if David Carradine was normally a loner...??
I did read in one of the first threads, some FReepers claim he enjoyed the occassional recreational beverage.
Again, Patpong right nearby?
Probably if there’s more involved, we won’t find out anyway.