Мафия 89. Nemesis

Who already has November 19th? Check Kostyakk's profile; the date should be displayed there. The last time he logged in was yesterday at 10:31 AM, Kyiv time. Night began at 10:43 PM, meaning he didn't send any messages. But we know for sure that he's a Mafia member. Look for clues related to him; if even one fits, we can accuse someone else. Ilfina hasn't appeared in any newspapers.