Inv□stiga□ors learned□t□at the group□had b□en friends for y□□□s,□but rec□nt□y□there ha□ b□□n tension among them. □umo□□ of□disag□□ements and□arg□ments dur□n□ th□ tr□p began to □ur□□ce, leading□authorities □o speculate whether fo□l□□lay□w□s involved. Eac□□member of□the group □ad a differ□n□ □□o□y to tell, and □he□inco□siste□cies i□ t□ei□ accounts□only added to the mystery □f□t□e missing nine.