SPRINGFIELD — A state parole board member resigned Monday after recommending the release of a man who a day later attacked a pregnant Chicago woman with a knife and fatally stabbed her 11-year-old son while he tried to protect her, according to authorities.The Illinois Prisoner Review Board's handling of the case prompted Gov. J.B. Pritzker to order that procedures for dealing with situations involving domestic violence be revamped.Pritzker announced that LeAnn Miller, 63, of Junction has submitted her …