The FBI said it has identified the thieves who pulled off the 1990 theft of 13 artworks from Boston's Isabella Stewart Gardner Museum, which stands as the costliest art theft in U.S. history. The thefts are valued at $500 million.
"We have identified the thieves who are members of a criminal organization with a base in the mid-Atlantic states and New England," Richard DesLauriers, special agent in charge of the FBI's Boston office, said in a statement.