The disappearance of a Ukrainian immigrant sent authorities investigating possible ties to the Russian mob, yet to learn that the answers might land at the feet of a suspected serial killer in Brooklyn. Russian translator Irina Malezhik, 46, moved to the United States after divorcing her husband in Ukraine, citing New York City as the “center of the universe,” friend and landlord Alla Berger said in the season finale of New York Homicide, now available on Oxygen. Malezhik was successful in her p