MEADVILLE — A woman pleaded guilty to involuntary manslaughter for the death of her 4-month-old son in March.

Casey Ann Shay-Yoder admitted in Crawford County Court Wednesday she had placed Aiden Brown face down on her bed and placed a pillow over him to muffle the boy's cries. The 19-year-old West Mead woman had been previously charged with criminal homicide, aggravated assault and endangerment for the March 5 death.