A mentally ill Carpentersville woman will serve 25 years in prison for stabbing her older sister to death in 2014, authorities said.
A judge Thursday sentenced 57-year-old Sandra L. Baumgartner to prison for the murder of 57-year-old Carpentersville woman Sharon Baumgartner, according to a news release from the Kane County State’s Attorney’s Office.
Sandra Baumgartner, of the 100 block of South Lincoln Avenue, pleaded guilty but mentally ill Feb. 2 to first-degree murder charges. The plea means she could receive mental health treatment as it is available through the Illinois Department of Corrections.
Kane County Assistant State’s Attorney Joseph Cullen stated in court that on Sept. 29, 2014, Sandra Baumgartner stabbed her older sister multiple times with a knife. A psychologist later diagnosed Sandra Baumgartner with schizoaffective disorder bipolar type, according to the release.
Sandra Baumgartner is required to serve 100 percent of the sentence, although she will receive credit for more than three years spent in the Kane County jail.
The murder took place in Sharon Baumgartner’s apartment in the 100 block of South Lincoln Avenue, police previously said. The sisters lived in separate apartments in the same building.
Several neighbors called 911 to report a disturbance. Police arrived to find Sharon Baumgartner badly bleeding, and Sandra Baumgartner had fled the scene.
She was found several hours later in a wooded area near her home, police said.