In□estig□to□sle□rnedthatth□□ro□ph□dbeen□riendsfor□ears□b□trec□□tlyth□□ehadbeentension□mong□h□□.Rumo□sofd□sagree□en□sand□□gumentsd□□ing□□etr□pbega□□osurf□ce,l□adingauthori□iestos□eculat□□het□erfoulplay□asinvo□□ed.Ea□h□□mb□□of□hegrouphadadifferentstorytotell,andtheinconsis□enciesintheiraccount□only□dde□t□t□e□ys□er□ofthemissingnine. □nvestigators□earnedthatthegrouphadbee□friendsf□ryea□s,butrece□tlyt□□rehadbeentensiona□o□gthem.Rum□rsofdisagree□ents□n□argume□ts□ur□ngth□tripbega□tosurf□ce,le□dingauthoritiestospe□ul□te□h□t□□rfoulplaywasinvo□ved.Eac□memberofthegroup□a□ad□ff□rentstory□otel□,andtheinc□nsisten□iesi□theirac□ountsonlyaddedtot□emysteryoft□emissing□□ne. Investigator□lea□n□dthatth□grou□hadbeenfriendsforyea□s,butrecentl□the□ehadbe□ntensi□namong□he□.Rumorsofdisag□eement□a□d□rgu□entsdu□ingthetr□pbe□antosurface,□e□□ingauth□ri□ie□tospecula□ewhetherfo□lplaywasinv□lved.E□c□memberoftheg□oup□ada□i□feren□st□□y□ote□l,andth□inc□□s□stencie□int□eiraccoun□son□yaddedt□the□□□teryof□hem□ssingni□e.□/p> □nves□igators□earnedthattheg□□up□adbe□nf□iend□foryears,but□ecen□lytherehadb□ent□nsionamongthem.□umo□sofdisagreeme□tsandargu□entsduringthetripbeg□ntosurface,leadinga□thori□i□stospecul□tew□e□□erfoul□laywasinvolve□.□ach□emberofthegroup□adad□fferentstor□to□ell,andthei□c□n□□sten□iesi□their□□□ountsonlyadded□othemy□teryofthem□ss□ngnine.□□