Police are investigating an assault on an elderly man in Greektown over the weekend.
The man in his 70's was sitting outside a Starbucks at Danforth and Gough on Sunday evening when witnesses say a man began yelling at him.
Police say the victim was punched before he fell and hit his head.
His injuries are serious but he is expected to survive.
The assault was initially thought to be random. Later reports suggested there was some kind of exchange between the victim and suspect.
The suspect is described as a man in his 50s or 60s, 6'2" with a medium to heavy build. He has salt-and-pepper hair and glasses.