Police said a suburban St. Louis woman was beaten, stomped and stabbed to death and her house was soaked in gasoline while two children were inside.
Officers responded to a house in Hazelwood early Sunday after a child called to say his mother was dead and his father had fled the scene, police said.
Officers found the woman dead inside. The children were taken to a hospital to be examined, police said.
Police said the victim was stabbed, stomped and beaten.
Gregory Smith III was arrested later Sunday on possible charges of first-degree murder, armed criminal action and two counts of endangering the welfare of a child.
No further information was released.