It's one of those stories that's hard to hear: An Arizona couple is in custody for child abuse after their four-year-old boy was found locked in a closet. 

Two weeks earlier the couple was fighting and the little boy was caught in the crossfire when his mother attempted to throw a pot of boiling water at the boy's father. 

The boy was badly burned but his parents feared they would get into legal trouble if a hospital found out how he had gotten his injuries.