A Quincy lawyer claims a former client has identified a person seen in the surveillance video from the day before the infamous 1990 Isabella Stewart Gardner Museum heist. 

The Patriot Ledger reports that George Burke, a former Norfolk County District Attorney, had a client who claims to have recognized the “unauthorized visitor” seen in the 25-year-old grainy surveillance footage released by the FBI on Thursday. 

The man said that he knew the person on film from working in the antiques trade. He said that the person in question had had contact with Myles Connor, a Milton man long suspected for having a hand in the heist. Burke said he informed US Attorney Carmen Ortiz that his client recognized the mysterious visitor, but the man is scared for his life and wished to remain anonymous. 

The mystery of two men disguised as police officers who made off with 13 artwork has baffled authorities and art enthusiasts.

Among the stolen works: canvases by Rembrant, Manet, Degas and Vermeer.

There is a $5 million reward for any information on leads. No one has been charged with this theft.