Invest□ga□o□□learnedthatthegrouph□d□eenfrien□□foryears,□utr□centlyth□r□had□ee□tensionamo□gthem.Rumorsofdisagreementsandar□umentsduringthetrip□egantosurfa□□,leadingauth□r□tiestosp□culatewhetherfoulplay□as□nvolved.E□ch□□mberofth□groupha□adiffere□tstoryt□tell,□ndthe□nconsi□tenciesint□eiraccount□o□□□added□othemysteryofthemissi□□nine.□> Investigatorslearnedthattheg□ouphad□een□riendsfo□ye□rs,bu□re□ently□herehadbeentensionamong□hem.Rumorsofdi□a□reemen□□a□dargument□d□rin□□hetripbeg□n□osurface,lea□ingau□horitiest□speculat□whe□herfou□□laywasinvolv□d.□achm□mberofthe□rouphad□diff□rents□oryto□e□l□andth□inconsiste□□□es□□t□□ira□countsonl□ad□edtoth□mys□eryofthe□□s□□ng□ine□<□p>□p>Investi□atorsle□rnedthatth□grouphadbe□nfriendsforyears,butrecentl□the□ehadbeen□□nsionam□□g□hem.Rumorsofdi□□gre□mentsandargumen□s□uringthetrip□eg□ntosurface,lead□n□a□t□oritiestospe□ulatewh□the□foulpla□w□sinv□lve□.Eachm□mberofthegrouph□dadifferentstorytotell,□ndtheinc□nsiste□□ie□in□h□iraccountsonlyaddedtothem□steryofthemi□□ingnin□. □nvestig□tor□lear□e□t□□□thegrouphadbee□frien□sfo□years,□utr□cently□here□ad□eentensionamon□them.Rumo□sofdi□agr□eme□tsandargumentsd□ringthetripbeganto□□□face,l□adingautho□i□i□□t□speculatewh□therf□ulp□aywas□□vo□ved□□a□hmembe□ofth□grou□hadadi□□□rentstory□□tell□and□□eincon□□ste□cies□ntheira□countsonly□dde□to□he□□□teryoft□□miss□□gnin□.