Police launched a murder investigation after the body of Carlo Giannini was found in Manor Fields Park, near City Road, early on Thursday morning.
The Italian Embassy, whose consular staff work with families in cases like this, confirmed the identity of the dead man yesterday, although South Yorkshire Police have yet to name him.
Mr Giannini is understood to have worked as a pizza chef in the city, and to be originally from the South East of Italy.
One person said they still have all the memories of Carlo from all their beautiful years together including when they came together in the summer at Torre Lapillo.
They described Carlo as light-hearted and as the "head of the band" during those hot summer days.
They also added that Carlo has departed but he has earned himself a special place in society.
Another added: “So many memories related to maybe more beautiful age... to the carelessness... wanting to have fun just being together.... there are no words ... if not RIP Carlo.”
Anorther added: “I still can't believe it.”
South Yorkshire Police have previously stated they are yet to formally identify the man after they were called to the scene at 5am on Thursday.
Anyone with information, who may have seen or heard any suspicious activity around the park between last Wednesday night and last Thursday morning, or who may have helpful CCTV footage, is asked to call police on 101, quoting incident number 122 of 12 May.
Alternatively call Crimestoppers anonymously on 0800 555 111.