I don't think so in these cases. I know the Thai police like to label every mysterious farang death a suicide. " Oh yes, farang break up with bargirl and very upset. He hogtie himself and jump over 3' railing off balcony. Crazy farang "! Of course, everything of his of value is gone as well. But, why would anybody kill backpackers (other than a waiter who expected a tip). For their bandana collection ? Much more likely, I think that the hotel owners don't want cucarachas running around - they're bad for business. So if a cap full of insecticide works good, a bottle full must work better - na ? The Thai authorities make sure these autopsies are screwed up or not performed in order not to kill the 'golden goose' of tourism. You see Ibsen's 'An Enemy of the People' reenacted over and over in Thailand. wj