□□>Inves□ig□tors □e□rned th□□ the g□oup had b□en friend□ for years□ bu□ re□ent□y□there had bee□ tension □mon□ them.□Ru□□rs of□□□sag□eements and argume□ts during t□e trip began to su□□ace, leading a□□horities t□ speculat□ whether foul □lay was □nvolved□ Each m□mb□r□□f the□gro□p had a□diff□rent st□ry to t□□l, and□th□ i□consistencies□in their acco□□ts □nly□a□d□□ to t□e mystery of the mis□ing □ine.