Investigatorsle□rnedthat□□□group□adbeenf□i□□dsforyear□,□u□□□c□nt□ythe□eha□be□ntension□□ongt□e□.Rumors□fdisagreemen□s□nd□rgumentsduringthetripbeganto□urface,□eading□uthoritiestospeculate□hetherfoulplay□a□□nvolved□Eachmembero□thegr□□phadadiffe□en□st□rytotell,andtheinconsis□□n□iesintheir□ccountsonlyadd□dtothem□ste□yofthemissin□ni□e.□/p> Investigator□learn□dthatthegrouphadbeenfriendsfo□□ear□□□□trec□ntlythe□□ha□□ee□tensionamongthem.□umo□□of□isagr□eme□tsand□rgume□tsduringthetripbegantosurface,leadi□g□uthoriti□stos□eculatewhetherfoulplaywas□nvolved□□a□hmemberofthegroup□ada□iffe□entst□rytotell□□ndthei□c□nsi□tenciesinth□i□accou□tso□lyadded□othemyst□ryofthemissingnine. Investiga□orsl□□rnedt□a□thegrou□h□dbeen□ri□ndsforye□rs□butrec□□tlytherehadbeent□nsionam□ngthem□Rumorsofdisagreementsandargumentsdur□ngthetrip□□□□nt□surfa□e,leadingauthoritiest□s□ecula□ewheth□rfou□□layw□□involved.□a□□mem□erofthegrouphadadifferentsto□yto□□ll,a□dtheinco□si□□encie□inth□irac□ountsonlya□dedtothemysteryofthe□iss□ngnine.<□p> Investigato□slearnedthatt□e□□ouphad□eenfriendsforyear□□□utrece□t□ythe□ehadb□entensiona□ong□hem.□umorsofd□sagreement□andargu□□n□sduringthe□rip□□□ant□su□face□lead□ngauthoritiestospecula□ew□eth□rfoulplaywasinv□lved□Each□emberofthegrouphadadiff□rent□torytote□□,□n□theinconsist□nciesi□theiraccounts□nlyaddedt□□he□ysteryofthemis□i□gnine.