A bunch of paintings from Mondrian and Picasso went missing from Athens' National Gallery back in 2012. They finally found the culprit and his name is... ArtFreak. That's his Twitter handle, at least.
Greek police haven't yet revealed his name. But they said he's a 49-year-old construction worker and he said “deeply” regretted his actions, which have robbed him of sleep. His lawyer said he never tried to sell the works.