There's still no official word from Niagara police, but the CBC is reporting the body recovered from Lake Ontario is that of Steve Nkusi.
His family tells CBC the 24-year-old was an athlete who represented Canada at the 2015 Junior Pan-Am Games.
The body was recovered yesterday (Tuesday) afternoon about four kilometres from the Welland Canal and some 500 metres offshore.
A boater called 911 to report finding the body.
Nkusi's family says the former track athlete went missing Saturday at Sunset Beach in St. Catharines while swimming during a friend's birthday party.
Police say they are waiting for official results from the Centre of Forensic Sciences in Toronto for a post mortem and positive identifcation.