In December 2002, Kravtsova went to court

In December 2002, Kravtsova appealed to the court to establish the fact of the death of her husband Kravtsov. In a statement, she pointed out that in June 2002 her husband had drowned in a river when the boat overturned, on which he was riding with his friends Zakharov and Brinchuk. Zakharov and Brinchuk remained alive. Kravtsov’s corpse was not found, as a result of which the registry bodies refused to register the fact of his death. After hearing Kravtsov, announcing the written testimony of Zakharov and Brinchuk, the court decided to declare Kravtsov dead.
Did the judge do the right thing?
Under what conditions does the court have the right to establish the fact of the death of a citizen, and under what conditions - to declare a citizen dead?
Under what conditions are cases about establishing a legal fact under the jurisdiction of the court?