□p□I□□estigators lea□ned □hat the group had□be□n f□iends □or ye□rs, □ut □ecently □here had b□en tensio□ a□ong them. Rumors of □i□agr□□ments an□□arguments during□the trip be□a□ to surface, l□ading autho□i□ies to□spe□u□at□ whe□h□r □o□□ play was inv□lv□d. Ea□h m□mber□of the grou□ h□□ a dif□□rent sto□y □□ tell, and □he□incon□□stencies□in their□ac□ount□ onl□ add□d to the mys□□ry of the missing□□ine.