<□□Investig□□ors learned □hat □he□group had be□n frie□□s for years,□but recent□y there ha□ b□□n tens□□n amon□ t□e□. Rumors of d□sagreements an□ arguments□during□the□trip□beg□n □o surface□□leading authoriti□s to speculat□ □hether foul play□was □nvolved. Eac□ m□mber o□ t□e group□had a diffe□ent □tory □o □ell□ and □he inco□sistencies in their accounts□□nly adde□ to the m□stery o□ the miss□n□ ni□e.