Tam Binh ward police initially determined some incidents occurred between a teacher and a 5-year-old boy at a preschool class, but no signs of abuse were found.
A 21-year-old mother is accused of slapping her 4-year-old son, causing him to fall and hit his head on the tiled floor, leading to severe injuries and death after several days of treatment.
The 1978 death of 5-year-old Andrea Bernard from hot bath burns was ruled an accident, but decades later, her brother admitted to giving false testimony due to fear of their stepmother.