An eleven-year-old is in a juvenile detention center after being charged with first degree murder.
The Mason County State's Attorney says he's charged in the death of 39-year-old Brenda Schaad.
Residents in this rural area near the Mason and Cass County line say they were surprised when they heard about the murder, and that an 11-year-old had been arrested for it.
They say Schaad lived in the area her entire life. She was always polite and nice, but that for the most part she kept to herself.
The Mason County Sheriff says Schaad was shot once inside the home that belongs to Schaad's mother and she lived there with her three boys.
Neighbors believe that her 11-year-old son is the one who shot her just after 6 p.m. Saturday.
The Mason County State's Attorney would not confirm that, but she did say two of Schaad's sons are staying with family.
Neighbors say after the shooting the 11-year-old boy took the family's car. He was later stopped outside Havana, after Illinois State Police issued an alert for him.
The boy is not being held in Mason County.
The State's Attorney Kristin Miller says he has been sent to another county with a juvenile detention center.
In the state of Illinois, Miller says you must be 13-years-old to be tried as an adult, so he will be tried in juvenile court.
She says two pre-trial hearings have already been scheduled.
Schaad's autopsy is scheduled for tomorrow.