A Spalding County judge was found dead in his car Tuesday afternoon, according to the Georgia Bureau of Investigation.

Griffin Municipal Court Judge William G. Johnston was 53.

Johnston left his home around 6:20 p.m. Monday and told family members he was meeting a client in Lamar County, the GBI said. Johnston’s family called police Tuesday morning when they had not heard from him.

Shortly after 5 p.m. Tuesday, the Griffin Police Department contacted the GBI for help locating the judge. The Spalding County Sheriff’s Office later called Griffin police to report that two workers had found Johnston dead inside his vehicle in the area of Jewel Drive and Pearl Circle.

Johnston’s death remains under investigation. No other details were available late Tuesday.

Johnston was a partner in the Johnston & Owen law firm, founded in Griffin in 1995. A native of Ft. Benning, he graduated from the University of Georgia in 1986 with a degree in microbiology, according to his biography on the law firm's website. Johnston received his law degree from UGA in 1990.

In addition to serving as a judge, Johnston served as general counsel for the Peace Officers Annuity and Benefit Fund, the Spalding County Board of Health, and the Butts County Board of Tax Assessors.

Johnston is survived by his wife, a son and a daughter.

In other news: 

Georgia teen found two years after disappearance Aubrey Jayce Carroll hadn't been seen since May 24, 2016. He was 15 when he was believed to have been staying with friends and heading to Jones County, where he had ties. On Tuesday, a long-haired 17-year-old Carroll emerged after a two-year search for him. “Thank y’all so much for your prayers and reaching out to my mom,” Carroll said in a video message posted on the Spalding County sheriff’s Facebook page. Carroll had operated under an alias and