Art theft is an complicated and ancient crime. When you take a look at the a few of the most famous cases of art thefts in history, you see completely planned operations that include art dealerships, art fakers, mobsters, ransoms, and millions of dollars. Here you can check out https://www.youtube.com/playlist?list=PLNxmDR0Lf7eKav0Z4XkSZcWl9N4D2c9qa