I□vesti□ators□e□rnedt□atthegrouphad□eenfr□end□foryears,□utre□entlythereh□dbe□nt□nsionamongthe□.Rumors□fdisagre□me□ts□ndar□ument□□□ringthetripbe□antosurface,lea□ing□u□horitiestospeculatewhe□herfou□□laywasinvolve□.Eachmem□□rof□he□rouph□dadiffer□ntstor□t□te□□,an□theincon□□sten□ies□nth□iraccountsonlyadded□othemysteryoft□emi□singnine. Inv□□t□gatorslea□nedthatthegr□□□hadbeenfriends□or□ear□,b□trecen□lytherehad□eentensionamongthe□.Rumorsofdisa□reeme□t□a□□argum□n□sdur□ngthe□r□□begantos□r□□c□,leadi□g□uthori□iestospecu□atewhet□□r□oulpla□was□nvo□ve□.Eachmemberof□□egr□uphad□d□fferentstoryt□te□l,andthei□□onsistenciesintheiraccoun□sonl□□ddedto□hemyst□ry□fthe□i□singnine.□□p><□>I□ves□igatorslea□ned□hatthegrou□had□□e□frien□sforye□rs,butrecentl□the□ehadb□entens□□□am□□gthem.Rumor□ofdisagre□mentsandargumentsdur□□gt□etr□pbeganto□urf□ce,le□d□ngauthorit□esto□peculatewhetherfou□□laywasinvolved.Eac□mem□e□ofthegr□uphada□ifferentstorytotel□,□ndt□einc□ns□stenciesint□eiracco□□tsonlyaddedt□□hem□ste□yofthe□issin□nine□ □nvest□gatorsl□arnedthatth□grouphadbeenfrie□dsf□rye□rs,but□ecentlythere□adbe□n□□nsion□mong□he□.Rumo□sofdis□greement□andargumentsduringthetripbe□antosurf□ce,□eadingauth□rities□ospeculat□whether□oulpl□yw□□involved□Eachmemberofthe□rouphadadifferen□stor□to□el□,andtheinco□sistenciesinthe□r□ccountsonl□adde□tothemystery□□themissingnine. I□ves□ig□torslearn□□tha□thegrouphadbeenfri□n□□□o□years,but□ecen□ly□h□rehadbe□nten□ionam□ngthem.Ru□orsofdi□agreementsandarg□□e□tsd□ringthetripbegantosurfac□,l□□d□nga□thori□iestospeculatewhetherfoulp□ayw□sinvolved.□achmemberoftheg□o□ph□dadifferent□torytot□l□,andtheinconsiste□c□es□□□□eirac□□untsonlyadd□□□□them□steryofthemissingnine□□> Investigatorslearnedtha□th□gr□uphadbeenf□□endsf□ryears,butrecentl□ther□hadbee□te□sionamo□gthem□Rumorsofdisagreem□ntsandargumentsduringthetri□begantos□rface,□eading□uthoritiestospeculatewhet□□□fo□lplaywasinvol□ed.E□ch□e□□□r□fthegrouphadadifferen□sto□y□o□ell□andtheinc□□si□tenciesi□the□racc□□□t□o□lyadd□dto□hemysteryo□□h□missingni□e.