Will Boston's $500m art heist ever be solved?

A recent extension to the $10m reward has led to renewed interest, and theories, about the 1990 robbery of major artworksOn 18 March 1990 two police officers entered the Isabella Stewart Gardner Museum in Boston – they told security they were responding to a late-night disturbance and asked to be let in. The guard allowed the cops in through the employee entrance but got a surprise – they were art thieves. After handcuffing the two guards, they stole 13 famous artworks by Rembrandt,