Police say it happened in the 400 block of South Denby around 11:00 Sunday night. They say when the resident answered the door, the the person outside was pointing a gun at them.
Authorities say the gunman forced the man back inside and left a short time later. The witness says the gunman was a man in his 20's, wearing a red hat with black pants and a longsleeve shirt. He's believed to have driven away in a sportscar that may have had a spoiler.
If you have any information about this case, you're asked to leave an anonymous tip by calling the We-Tip hotline at 800-78-CRIME.