How did Gardner High School wind up with Norman Rockwell painting? The Rockwell painting was originally presented to Gardner High School Principal F. Earl Williams in the 1950s.

An empty frame hangs in the Isabelle Stewart Gardner Museum, where a painting was stolen. The art heist has become a well-known crime. David L. Ryan/The Boston Globe via Getty Images ...

In 1990 thieves disguised as police stole 13 artworks from the Isabella Stewart Gardner Museum. Their empty frames have been restored and remain as stark reminders of the unsolved art heist.