Two men accused of killing their estranged wives in unrelated attacks over the past week in San Jose will be arraigned on Wednesday, prosecutors said. The most recent killing happened Monday in South San Jose, when a 49-year-old woman was found bludgeoned and stabbed to death at a home in the 5800 block of Snell Avenue. Officers responding to a welfare check about 12:45 a.m. found the woman’s husband, 55-year-old Shede Mao, walking out of the house.