Inv□s□ig□tors learned that the g□oup had been friends□for years,□□ut r□c□nt□y there□had□been□□ension a□ong □hem.□Rumo□s □f di□agreemen□s and arguments□du□□ng □he□trip b□gan to□□urface□□leadin□ a□t□orit□es to sp□c□l□□e wh□ther foul□p□ay was□involved. Each member of the gro□p h□d a di□f□rent story to □e□l□ and □he i□consisten□ies□in t□ei□ a□counts only added □o the□mys□ery of □h□ m□ssi□g □ine.