Mona Lisa Béroud checked back with the Section Chief of the Louvre who confirmed that the "Mona Lisa" was not with the photographers. The Louvre was closed for an entire week during the investigation. French poet Guillaume Apollinaire came under suspicion and was arrested and imprisoned. Apollinaire implicated his friend Pablo Picasso, who was brought in for questioning. Both were later exonerated. Two years later the thief revealed himself. Louvre employee Vincenzo Peruggia had stolen the "Mona Lisa" by entering the building during regular hours, hiding in a broom closet, and walking out with it hidden under his coat after the museum
Vincenzo Peruggia making a vow for you to live long and enjoy the prize that your son is about to realize for you and for all our family." Put on trial, the court agreed, to some extent, that Peruggia committed his crime for patriotic reasons and gave him a lenient sentence. He was sent to jail for one year and 15 days, but was hailed as a great patriot in Italy and served only seven months in jail. Another theory emerged later. The theft may have been encouraged or masterminded by Eduardo de Valfierno, a con-man who had commissioned the French art