<□>Invest□g□tors lear□ed that the□group □ad b□en friends□fo□ y□ars,□b□t□r□□ently □□e□e had □een□te□sion□amon□ them.□Rumors of d□sagreements and argumen□s □□ri□g the trip □egan □o s□r□ace, l□adin□ aut□or□ties to speculate □he□her f□ul play□□a□ involved.□E□ch member□o□ □he □r□up ha□ a different st□r□ to te□l, and the inconsistencie□ in their acco□nts only adde□ to the m□ster□ □f the missing □ine.