CHARLESTON, SC (WCSC) - Court documents released Wednesday state the 21-year-old man charged with killing his mother stole change after he shot her.
Arrest warrant affidavits state witnesses told investigators Walker Wayne Pinkleton took a safe out of his mother's bedroom, pried it open, and removed a large amount of change.
Another witness told police Pinkleton took the change to two different "redemption machines" after he shot and killed 59-year-old Patricia Walker.
On Tuesday, police charged Walker with murder and possession of a firearm during the commission of a violent crime.
Pinkleton was originally charged with grand larceny after authorities say they found Pinkleton driving his mother's SUV Monday morning.
The coroner's office also revealed on Tuesday that Walker was shot sometime between Friday night and Saturday morning. Authorities say they found Walker's body with a gunshot to her head at her home on 958 Orange Grove Road.
An incident report states a neighbor saw Pinkleton leave Walker's home Sunday afternoon in the victim's green Ford Excursion.
Family members told police Pinkleton did not have permission to be in possession of the Excursion. Court documents state the key to the Excursion and the key to the Walker's bedroom, which was deadbolted, were on a key chain Walker kept with her.
According to an arrest affidavit, Pinkleton had narcotic problems and had stolen items from Walker in the past. Walker was found dead in her home on Sunday.
Charleston police said they responded to Walker's home at 958 Orange Grove Road just before 5 p.m. Sunday after receiving a call from her family in Columbia. Officers say her family grew concerned after they had not heard from her.