The alleged assailant gunned down five men and three women after a drinking session last night turned violent in the village of Redkino, some 110 kilometres (70 miles) northwest of Moscow, the Investigative Committee said.
"During the get-together there was a domestic dispute between the guests, after which the suspect left and then returned with a hunting rifle," investigators said in a statement, adding that the man had been "drinking spirits".
"He fired several shots, as a result of which at least eight people died."
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