An Austin woman found shot to death in her bed had been notified that her son was absent without leave from Fort Benning, Ga.
Pvt. Travis Wayne Baczewski of Austin remained in the Travis County Jail on Thursday on $1.1 million bail.
Baczewski is charged with capital murder in Sunday's killing of 54-year-old Violetta Baczewski, plus unauthorized use of a motor vehicle.
The 22-year-old soldier was arrested Monday in Alamo at a La Quinta hotel.
An affidavit says the victim received a letter from the Army on July 23 that her son was AWOL, not on leave as he claimed.