ATLANTA -- Federal and county investigators are looking into the death of a second professional wrestler who was the patient of Dr. Phil Astin, according to the Atlanta Journal-Constitution.

Astin is the doctor who admits prescribing steroids to wrestler Chris Benoit who authorities said killed his wife and son and then committed suicide.

Investigators said Friday that wrestler Michael Durham, also know as Johnny Grunge, was a patient of Astin's when he died in 2006.

Capt. Mike Pruitt of the Fayette County Sheriff's Office drug task force told the AJC that Dr. Astin is suspected of overprescribing drugs to Durham.