<□>Inv□stigators learned that the group had□□een friends□f□r y□ars□ but rec□ntl□ ther□ had be□n tensi□n □mong □he□. Rumors o□ disag□eements and □□g□ments durin□ the□trip □egan □o □u□face, leading au□horities to specula□e whether fo□l□pla□ □a□ involved. Each membe□□□f the group□had a □ifferen□ story to □el□, □nd□the incon□is□en□ies i□ their account□ only□ad□ed to t□□□□ystery of □h□ missing n□ne.