An 81-year-old Ballwin woman is recovering from a knife wound after police say she shot and killed her son.
Ballwin police say it's not the first time they received a domestic disturbance call to the home of Joanna Walker in the 700 block of Clayworth.
Just after one this morning, they found her son, 41-year-old Brian Walker, shot twice in the chest. He was taken to an area hospital where he died about an hour later.
A knife and gun were recovered at the home. Police say the elderly woman suffered a deep knife wound to her hand and is being treated at an area hospital. She told police her son came after her with a knife and she acted in self defense. No word on if any charges have been filed.