A northern Kentucky woman has pleaded guilty in the beating death of her 1-year-old son, according to court documents.

Stacey Schuchart, 32, entered the plea last week to a charge of murder, The Kentucky Enquirer reported, citing documents filed in Campbell County Circuit Court.

The documents say Schuchart was home alone with her children in August 2019 when she called 911 to report her 1-year-old son, Sean Buttery Jr., was injured. Emergency responders arrived to find the boy in critical condition and he later died at a hospital.

An autopsy found the death was caused by “homicidal violence,” documents state. Investigators found bruises covering the child’s head, injuries to his brain and eyes and to his pelvis, according to the documents. The coroner’s office determined he was “beaten to death,” the newspaper reported.

The boy’s father was at work when the injuries occurred and indicated that he was uninjured the night before, according to the documents.

A sentencing hearing was set for March 29.