Investigat□rs learn□d th□t□the group□had been□fr□ends for years, b□□ recen□□y □h□re ha□ bee□ te□sion □□□ng □hem. Rumors of disa□ree□ent□ and □□g□ment□ □uring t□e□trip □egan to surf□ce, lead□ng author□tie□ to □pec□late whet□er□foul pl□y wa□ invol□ed. □ach membe□ of th□□□roup had a different sto□y to t□□l, and the incons□stenc□□s in□their ac□ounts only a□de□ to the my□tery□of t□e□missing nin□.