Investig□to□s learned that th□ group had been friends for yea□□, but□r□cent□y □here□had b□e□ tensio□ amo□g them.□Ru□ors of □isagreement□□and a□guments □□r□n□ the trip began to su□face□ lea□ing □□thoritie□ to sp□culate whet□er fo□l play was i□□o□ved. Ea□h mem□er of the grou□ had a diff□rent □□or□ to tell,□a□d th□ inconsistencies i□ th□ir accounts□□□ly□a□ded t□ the myste□y of the miss□ng □ine.观光游览□/h2>