□p>Investig□tors learn□d t□a□ the grou□ □ad □ee□ fr□ends □or□□e□rs, b□t re□ently there h□d□be□n tensi□□ a□o□□ them. Rumors of disagre□ment□□a□d argu□en□□ durin□ the trip began to□surface, □ea□□ng□authorities to specu□at□ whether □o□l play w□s involve□. □ach memb□r□of the group ha□ a diff□ren□□s□or□ to tell, and t□e □ncon□iste□cies i□ their acc□□nts□only added to□the myste□y o□ the mi□sing□nine□<□p>