Why did Miao Qingshan kill a foreign old man in Moscow?

Ethnic discrimination angered Miao Qingshan.

According to Youku Video APP, when Miao Qingshan went to the concert, he spoke too loudly with his accomplices. The old man accused him of this, which also rose to ethnic discrimination and angered Miao Qingshan, who killed the old man. Moscow Action is a suspense criminal investigation drama, directed by Lei and starring Yu Xia, Una, Zhang Zhijian, Nadezhda Mikhalkova, Terry, Dong Bo, Betty, Liu Mingming, Du Ziming, Li Hongchen and Nikolai Ivanov. Based on 1993 "great train robbery between China and Russia" and Russian policeman Cheng Yali as the prototype, the play tells the story that many "profiteers" were smashed and robbed on the train when they went to Moscow for gold. Russian police went to Moscow and smashed the criminals one by one without showing their weapons and identities.