Authorities say Amster had been watching 5-month-old Christian Bent at her Boynton Beach home in August 2015. The child’s parents noticed he was unresponsive after picking him up and rushed him to the hospital. Doctors declared Christian brain dead two days later.
An autopsy found cuts, hemorrhages, brain swelling, bite marks and bone fractures, leading the medical examiner to rule the Christian's death a homicide, according to the Sun-Sentinel.
Detectives say two children present at Amster’s home told authorities the woman hit the child’s head against the wall. One child said Amster had told Bent to stop crying.