The BBC has established the chain of events, detailed by the leaked police log and supported by insider accounts from serving officers, that led to the shootings.
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客运方面，自 2 月 15 日（腊月二十八）至 2 月 23 日（正月初七），探亲流、务工流与旅游流叠加，全国铁路日均发送旅客 1341 万人次。
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