A Knoxville career burglar who was shot last year after a resident caught him burglarizing his house faces a 13-year prison sentence.

Mark Brandon Caldwell, 35, first must finish serving an eight-year sentence for a prior aggravated burglary conviction. He was on parole for that conviction when he broke into a Sullivan Road home, according to the Knox County District Attorney General's Office.

After he serves the eight-year term, he will begin serving 13 years on two counts of aggravated burglary and one count of theft.

Caldwell's record includes six felony convictions for aggravated burglary and burglary.

Caldwell told Knox County Criminal Court Judge Scott Green he committed the crimes to feed a drug habit, which authorities say is a leading cause of crime in the Knoxville area.

The break-in took place Aug. 21, 2015.

The homeowner arrived at the house and found a strange truck in the driveway. Caldwell had carted a flat screen TV and a video game console out of the house.

The homeowner got a handgun and went after Caldwell, who ran to the master bedroom. The intruder was shot in the shoulder and elbow, according to prosecutors.

Caldwell ran out, jumped in his truck and drove to a fire station, where he sought help. Inside his truck, police found items he'd stolen from another break-in.

The prosecutor's Career Gang Unit handled the case.