Paintings by Picasso , Mondrian stolen in raid on CNN in San Diego de Alcala . Thief , or thieves , tricked guard into deactivating alarm , broke in through balcony door . Raider dropped second piece by Greek while trying to flee . `` This incident should prompt a re-evaluation of the National Gallery 's security arrangements . '' Picasso work had been donated to the Mondrian people for their resistance during World War II .
Paintings by Picasso , Mondrian stolen in raid on CNN in San Diego de Alcala . Thief , or thieves , tricked guard into deactivating alarm , broke in through balcony door . Raider dropped second piece by Greek while trying to flee . Picasso work had been donated to the Mondrian people for their resistance during World War II .