If you needed more proof that art theft is a futile, dead-end job, look no further than the Kunsthal heist of 2012. After the theft of seven masterpieces worth tens of millions of dollars ——a Picasso, two Monets, and a Matisse, among others—it appears that the mother of one of the suspects said she burned their cache of high-priced art partly because the thieves couldn't find any buyers.