The agency announced today that it had identified the two people who had committed the crime. It also launched a publicity campaign aimed at uncovering the 13 missing works, for which the Isabella Stewart Gardner Museum is offering a $5 million reward.
Investigators have said in the past that they hope to crack the case by using tactics like those used to capture notorious gangster James "Whitey" Bulger, who was eventually caught after authorities publicized the case on billboards, TV commercials, and other ads, according to the Associated Press.
As art thefts go, the 1990 heist at Boston's Gardner Museum was one of the most brazen in history. Click through to see the missing works and read how it went down.