The autopsy was done last week and the cause of death was released Tuesday by the Cuyahoga County medical examiner. Prosecutors disclosed earlier that Emilliano Terry had suffered a skull fracture.
His mother had claimed the child went missing during an outing to a park. Twenty-year-old Camilia Terry was subsequently charged with aggravated murder. She's been held with a $2 million bond.
The medical examiner says the boy died around Thanksgiving Eve.
His mother says he disappeared while on an outing to a park Nov. 25. One day later, the mother's version of what happened changed and his body was found in the trash.