Thomas Nowicki was last seen around 7 p.m. last Thursday walking away from 6100 block of Camden Forrest Cove in Riverdale, the Clayton County Police Department said.
Nowikci is described by police as being 5-feet-10-inches tall, weighing 150 pounds, with brown hair, and blue eyes. He was last seen wearing gray shorts and gray/green shirt.
Police said Nowicki has been diagnosed with depression and schizophrenia disorder.
Anyone who sees Nowicki is asked to call 911 or the Clayton County Police Department at 770-477-3550.