A 17-year-old boy and his 20-year-old girlfriend are accused of abusing a one-day-old baby.
Sioux Falls police say the couple had been drinking when the 17-year old stepped on the infant's face. Police say the baby's mother — who is the suspect's cousin — yelled at him and he responded by slapping the newborn across the face.
The mother took the baby and hid in a laundry room. Police say 20-year-old Aubrey Heck followed her and stepped on the baby's feet until it cried. At that point, she's accused of attacking the mother.
Police say Heck and the 17-year-old suspect face several charges including underage drinking and child abuse.
Police say the baby's only noticeable injures were bruises on its ankles.