A man charged with shooting his father over a drug-related argument pleaded guilty Wednesday in Troup County Superior Court.

Deremy Davis, 22, was sentenced to 25 years on charges of voluntary manslaughter and possession of a firearm during the commission of a felony. The voluntary manslaughter charge was reduced from murder as part of the plea.

Davis, quietly addressing the court after accepting the deal, apologized.

“I’m sorry for the mistakes I made,” Davis said.

Joyce Tucker, Davis’s grandmother and mother of Leonard Davis, the victim, said she was ready for the ordeal to be over.

Deremy Davis pleaded guilty to shooting his father on July 9, 2011, once in the chest at their home at 10 Timothy St., which they shared with Tucker and another relative, who both were present during the incident. Deremy Davis argued with his father over allegedly stealing some of his cocaine, then punched him in the jaw.

When Leonard Davis went to take a bath, Deremy Davis confronted him again, this time with a gun.

“Leonard Davis was preparing to take a bath when the defendant shot him almost dead-center in the chest. Why? Because his son got mad,” said senior assistant district attorney Melissa Himes in her opening statement Tuesday. “He was angry because he thought his dad stole some of his cocaine.”

Leonard Davis was pronounced dead later that night at West Georgia Medical Center. Deremy Davis turned himself in to the Troup County Sheriff’s office the day after the incident.