On 14 November, another of Yezhov’s protégés, the Ukrainian NKVD chief Alexander Uspensky, disappeared after being warned by Yezhov that he was in trouble. Stalin suspected that Yezhov was involved in the disappearance and told Beria, not Yezhov, that Uspensky must be caught (he was arrested on 14 April 1939). Yezhov had told his wife, Yevgenia, on 18 September that he wanted a divorce, and she had begun writing increasingly despairing letters to Stalin, none of which was answered. She was particularly vulnerable because of her many lovers, and for months people close to her were being arrested. On 19 November 1938, Yevgenia committed suicide by taking an overdose of sleeping pills.