[Breaking news update, posted 5:00 p.m. ET]Southern Ohio residents were urged to lock their doors Friday night after eight family members were fatally shot “execution style,” including a mother slain while her 4-day-old child lay in bed beside her, authorities said.That child, along with a 6-month-old and a 3-year-old, survived the killings at four crime scenes, Pike County Sheriff Charles Reader said at a press conference. “I am still actively ...