The duty department of the Internal Affairs Directorate received a message about a scandal in the hall of the Sberbank. Unknown, after a scandal with citizens, broke the glass of the partition wall and threatened Sberbank employees with a knife. A police squad arrived at the scene. The senior police sergeant Zuev, entering the room, tried to remove the intruder, but the latter rushed at him with a knife in his hand. At that moment, senior police sergeant Kornev, defending a comrade, fired a shot to kill and mortally wounded the attacker.
Determine if the actions of the police officer are appropriate in this situation?

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