When 5-year-old Zona Byrd was discovered unresponsive in bed last month, her mother, Bernice, didn’t call 911, according to court records. She called her sister. The girl’s aunt soon arrived at the Byrds’ gray brick rowhouse in Northeast Baltimore, climbed the steps to the second floor, and entered the middle bedroom that Zona shared with her older brother. She felt Zona’s hands and they were “ice cold,” according to a police report. By all appearances, Zona had starved to death. She weighed jus