<□>Investigators learned that th□ g□oup had □e□n□friends for years, but□□□centl□ □he□e h□d been ten□ion a□ong□them. Rumors of □isa□reements and□□rgument□ during □he□trip be□an to surf□□□, l□ad□ng a□thorities to speculate□whet□er□fou□□play wa□ involved. Each□membe□□of□the gr□up□had a diffe□ent story to tell□ □nd the inco□sisten□ie□ □n their accoun□s o□ly ad□e□ to the□m□□tery of the missi□g n□ne.<□□>