Inv□stig□□ors learned tha□ the □roup□had been □□iend□ for □□a□s□ □ut recent□y there had been tension among □□e□. Rum□r□ of di□agreem□nts □nd ar□ument□ du□ing □he trip began to□surfa□e, leadin□ authori□ies□to□sp□culate □hether foul pla□□was involv□□. Each member of th□ g□o□p had □□differen□□st□r□ to □ell, an□ the □nconsisten□ies in th□□r a□cou□ts only a□ded□to□the mystery of□the mi□sing nine□□/p□剧□概述