would buy it knowing it s stolen. reporter: it certainly isn t worth anything on the open market. everybody knows about it and everybody has an opinion. sneaky sales. just get the picture out. get in a taxi go home without anyone finding him. that s intelligence and entrepreneurism. well done. picasso would applaud him. reporter: by the way, she was not in the art gallery of she was in the bar down the street you may have guessed that. the big fear now is that because everybody has seen this guy, he may destroy it just to get rid of the evidence and that within a shame. if you have seen this guy, you know this guy, call san francisco police. i mean, it would be amazing if this guy actually got away with it. it sounds like he just lost the movie thomas crown affair and thinks he can walk into an art gallery and take a picture and walk out. reporter: i said it was double locked down. it was really two hooks and now they are going to get surveillance and security in th