□p□□□□estiga□ors learn□d t□at □□e group had been □riends fo□ ye□r□□ but r□c□ntly there h□d b□en□□ension am□ng them. Rumo□s of □isagreements □n□ argument□ duri□□□t□e □rip began t□ surf□ce,□leading aut□orities t□ s□eculate whe□□er fo□l □la□□was involved. Each□mem□er of the group□had a dif□e□□nt s□ory t□ tell, a□d the i□consi□tencies □n t□eir accou□ts onl□□added to the m□st□ry of□the mis□ing nine.