My wife cheated, she hated me": A 40-year-old math teacher from St. Petersburg killed his mother-in-law and his young son, then planned to take his own life, but he was arrested. The brutal murder became known the day before. The man attacked his partner, mother and child with a hammer. The woman managed to escape by jumping out of the window and called for help. The body of a murdered child was found in the refrigerator in the same apartment where his grandmother was found murdered. The detainee explained his action in a family dispute and his wife's infidelity. We are at MAX.