Investiga□□rs lea□□ed □□at □h□ gr□up had □een friends□for years□ bu□□r□c□ntly there □ad been tension am□ng them. □umors □f disagree□ents and a□gum□nts d□□ing□the □rip began to □ur□□ce□ lead□□g a□t□orities to speculate whe□he□□fo□l play was involved. Eac□ member o□ t□e gr□up had□a d□fferent□□□ory to tell□ □nd □he inco□sistencies in th□ir accounts only added to the mystery □f□□he □issing□nine.