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请问:“豺狼”是李燕所杀的吗?为什么?侦破与推理:1.作案者必须具备如下条件:一是要有作案动机;二是要有作案时间;三是要在现场找到他留下的痕迹:脚印,指纹等;四是能在作案者身上或住所找到作案者在现场的证据(比如死者的钱财、物件、血迹、头发等)。梅小凤、张大强、李燕三人都具备作案动机。关于作案的时间,梅和张有,而李燕远在百米外的皇都宾馆,客厅还有两名警官坐着,似乎没有。
Excuse me, I ask: “Jackal” is Li Yan killed? Why? Detection and reasoning: 1. The perpetrators must have the following conditions: First, there must be motivation to commit crimes; Second, there must be time to commit crimes; Third, we must find on the scene He left the traces of: footprints, fingerprints, etc .; Fourth, the perpetrators or dwellings can be found on the scene of the perpetrators of evidence (such as the deceased’s money, objects, blood, hair, etc.). Mei Xiaofeng, Zhang Daqiang, Li Yan, all three have the motive of committing the crime. About the time of the crime, Mei and Zhang You, and Li Yan far from the Royal Hotel in the hundred meters, the living room there are two police officers sitting, it seems not.