SACRAMENTO — A mother's plaintive wails echoed through the courtyard of a Sacramento apartment complex Sunday, one day after her husband apparently shot five of their young children before turning the gun on himself. Sacramento police said they were still investigating what might have prompted 31-year-old Kao Xiong to kill his daughter and four sons in a shooting that has left family members shaken and searching for answers. "I don't understand, and I am saddened by... (GunPolicy.org)