The Gavrilovs have been married for over 13 years, during which the Gavrilov repeatedly beat his wife. Once, Gavrilov, while in a state of intoxication, again started a fight with his wife. He hit her with a heavy object on the head, thereby causing serious harm to health. After that, he grabbed an ax and wanted to hit him, but his wife pulled out an ax from him and inflicted two blows on him - in the neck and right forearm. Gavrilov left the house, fell. The neighbors who found him soon saw that he was dead. Gavrilova in serious condition was taken to the hospital.
Decide on the legality of the necessary defense in this situation. Will Gavrilov be held criminally liable, and to what extent?

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