Hello and welcome,
The town of Cinsi doesn't exists while there is Cinisi
in the province of Palermo. I guess the family said your grandfather was from Palermo as Cinisi is a very small town. Many times people mentioned the province instead of the town. Both surnames, Chirco and Vitale, are found in Cinisi. The street "Via Venuti", still exists in Cinisi. On the Italian White Pages there are many people with the surname Vitale in Cinisi but two of them live in Via Venuti: one is in Via Venuti, 105 and the other in Via Venuti 181.
You may write to those people and send a copy of the photograph asking them if they are related to your family. Of course you'll have to write in Italian. If you post here your letter we can help you in translating it.