The medical examiner has ruled the death of a 3-year-old Brooklyn boy a homicide.
Police say Ethan Ali was found inside his home in Bronwsville Wednesday afternoon.
The boy's cause of death was determined to be multiple blunt impact injuries.
Sources say his aunt, who had been babysitting the boy when police were called to the scene, is being questioned.
The Administration for Children's Services is working with police on the investigation.