Inv□□□igat□r□ learned□□hat□□h□ □r□up had bee□ f□iends for yea□s, but □ece□tly □her□ had been tension among them. R□□or□ □f disagr□eme□□□ an□ arguments during□the t□ip be□an to su□face□ leading aut□□rities to spec□late wh□ther foul p□ay was involved. E□ch□m□m□er □f□the g□oup had a□diff□ren□ story to tel□, □□d the inconsist□ncies□in their a□co□nts □nly□add□d to th□ mystery □f the mi□sing nine. ```h□ml社会反响
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