He wandered off from his home in Lindenhurst and appeared, battered and bruised, about two-and-a-half hours later at a gas station in Copiague, police said.

Now, Suffolk County police are asking for the public's help as they attempt to find out what happened to George Nomikoudis, 60, a cancer victim they said suffers from dementia.

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The incident occurred Dec. 1, Nomikoudis leaving his home on 36th Street at about 10 p.m. Police said that when Nomikoudis wandered into a Sunoco station on Sunrise Highway in Copiague at about 12:35 a.m. Dec. 2, he was bleeding and had suffered contusions and lacerations to his face and to the back of his head.

Police said Nomikoudis does not know what happened to him after leaving his home.

He was missing his keys and a cellphone, police said, and his wallet was found on the front stoop of his home in Lindenhurst.

Police ask anyone with information about the incident to call Crime Stoppers at 800-220-TIPS. All calls will remain confidential.