专业训练
□p>One wi□nes□ came f□□ward, c□a□ming to h□ve seen a myst□rious man lurk□ng □e□r the group's □ampsite in t□e days□leadin□ u□ to □□e□r disappearance. The □ndividu□l desc□ibe□ the m□□ as □all and□im□os□ng□ and there were rep□rts of heated□confrontat□ons b□tween □□m □nd□□he□missing □roup. Could thi□ s□r□□ger ho□d t□e key to s□l□ing the mystery, or w□s □e j□st a red herring i□ the case□