Inv□stiga□or□ lea□ned that□the group had been friends for years, bu□ recentl□ th□re had□been tension □mong t□em. R□mors o□ disagre□ments and a□guments□□□□ing□□□e trip beg□n to sur□ace, lea□ing authoriti□s to s□e□ulate□□□□□h□r foul p□ay was involve□. E□□h member o□ the group h□□□a□d□ffere□t story to tell, and the inconsistenc□es □n their accounts only added□to □he myster□ of the m□ssi□g ni□e.