Kierra Coles was about three months pregnant with her first child when she vanished more than three years ago.
The U.S. postal worker’s disappearance initially drew widespread media attention and speculation, but her trail quickly went cold. For Mother’s Day, Coles’ mom joined other parents of missing children to mark the “heartbreaking” occasion and raise alarms about the stalled, years-long searches that have left them grasping for answers.
