According to a criminal complaint, the baby was alive when his mother dropped him and his older brother off with Tietsort on the afternoon of Oct. 18, 2018. Tietsort was aware that the baby died while he was in her care, police said in the complaint. An autopsy showed he died of blunt force trauma to the head.
Tietsort dressed the baby in winter clothes, strapped him in a car seat and pretended he was alive while driving through McDonald's with her boyfriend, their son, and the victim's other son the complaint said. She later returned the baby to his mother, but allegedly didn't tell her anything was wrong. Tietsort told police she went swimming with her boyfriend later in the day.