The Missing Piece: Mona Lisa, Her Thief, The True Story
"On August 21, 1911, the Mona Lisa disappeared from her place on the wall in the Salon Carré in the Louvre.
Even more surprising, this famous piece of art remained missing for nearly 2-1/2 years.
It was the biggest news story of its day, making headlines around the world. French police were completely baffled and they grasped at every possible lead. Even Pablo Picasso was questioned. (He had nothing to do with the theft although he did have stolen statues from the Louvre in his possession.) As time passed, Parisians resigned themselves to never seeing Leonardo's masterpiece again -- even though the M0na Lisa and her kidnapper were hiding under their very noses -- in a slum less than 2 miles from the Louvre."