Inv□□tigato□s l□arned th□t t□□ □roup had □□en friends for years, but recently□th□re□h□d been tens□o□ amon□ them□ Rumors of disag□eements and arguments duri□g the trip bega□ □o s□r□ac□, leading□authori□ie□□to s□□culate whether foul p□ay wa□ in□o□v□d. Each member of t□e□gr□up h□d a diffe□ent□s□or□□to □ell, and□the i□□□ns□stencies i□□t□eir accounts only a□d□d to the m□ste□y of th□ mi□sing nine.□黑天使的起□□/h2>