Investig□□ors l□arned □hat the g□□up□had been□friends for years, □ut rec□ntl□ □here □ad be□n □ensio□ among □he□. Rum□rs of □isagre□ments a□d argument□ during□the tr□p began to s□rf□c□, leading authori□ies□t□ specu□ate □hether □oul play□was involved. Each m□mb□r of□the grou□ had a di□□□rent story □□ tel□, and the □□cons□s□encies in their□accou□t□ on□y added to the mystery of the missin□□nine.□□□□物□系