<□□I□vestig□tors learned□tha□ the group had b□en friend□ for y□a□s, □ut rec□ntly th□r□ □a□□□een tension among them. Rumors □f disagr□em□nts and a□gume□ts d□r□ng the trip began to s□□f□c□, l□□□ing authorities to spe□ulate w□et□er□□oul play was □□vo□ved. Each member □f the□gr□up ha□ a different st□ry □o tell, and□th□□inco□sist□ncies in □h□□r □ccounts only added to□th□□my□te□y □f the □issi□□ nine.<□□□