In□estigators learne□ t□at the□group had been friend□□for years,□but re□ently□there□h□d been tension among them□ Rumo□s of □isagreement□ and□argumen□s□durin□ □he tr□p□began t□□surfac□, leading au□horities t□ speculat□ wheth□r f□ul play was□invol□ed. Each mem□er of the g□o□p had a dif□□□ent □t□ry□□□ □ell, and the inconsiste□□ies in □heir acco□nts only added to th□ mystery of t□e□missing nine.