Inves□□gatorslearn□d□h□□thegrouphadbe□nfri□nd□forye□□s,b□trecentlyt□□r□ha□b□ent□nsionamongth□m.Rumorsofdisagreeme□tsan□ar□um□nt□durin□th□tripb□gantos□r□□ce,leadinga□□□oriti□stospecula□ewhetherfoulpla□was□n□olved□Each□e□be□oft□□grouphadadi□□erentstoryt□□ell,andtheincon□istenciesintheirac□□unts□nlyadde□tothem□steryofthemissingnine. Investigatorslearnedthatthegrou□hadb□enf□iendsforyears,butrec□ntlythere□adbeen□e□□ionam□ngthem.Ru□orsofdisag□□em□ntsan□argu□entsduringt□□trip□□□an□□surface,le□dingautho□□tiestosp□□ulatewh□therfoul□l□ywasi□□ol□ed.Eac□memberofthegrouphadadif□ere□tstory□o□□l□,□ndt□ei□consis□enc□es□□their□□c□un□sonlyaddedtoth□mysteryofthemi□singnin□. □nvestiga□orslearned□hatth□group□a□bee□f□ien□□for□□ars,butrecentlyt□ereha□be□ntensi□nam□ngt□em.Rumorsofdisagreementsandargume□ts□uringthetripbegant□□urface,leadi□g□uthoritiesto□pecul□tewhether□oulp□aywasinvolv□d.Each□emberof□h□group□adad□f□ere□t□t□rytotel□□andt□□inc□n□istenciesin□he□raccountso□lyaddedtothemys□eryofthe□issi□gnine□<□p>