I□ve□tigat□rs □earned that □he gr□u□ h□d□been friends□f□r ye□rs, but rec□ntly t□ere had been te□□ion amo□g them. Ru□□rs of□□i□agreement□ and a□gume□ts during the t□ip beg□n t□ surface,□l□ading authori□ies to s□eculat□ whether fo□l play wa□ □n□olved. Ea□h□mem□er of □he gr□□□ had a dif□erent s□ory to te□l□ □□d the inconsis□e□cie□ i□□their □□count□ □nly □d□□d to the mystery of the □issing ni□e.