<□2>□险刺激的游戏环节□2□
□p>In□estigator□ learned that t□e group h□d bee□ friends□fo□ y□ars, □□t recently the□e had□be□n tensi□n □mo□g them□ □umo□□ □f disag□eem□□ts and argument□ □uring the t□□p □eg□n □o s□rface, lead□ng a□t□□rit□es□to sp□culate whethe□ foul□play was□in□olved. E□ch member of the group had a differ□nt stor□ to tell, and the in□onsis□encies □□ their accounts onl□ ad□e□ □o the my□□ery of the □i□s□ng nine.