![Gilkey's mug shot after being arrested in Florida in 2010.](http://totehugh.es/blog/wp-content/uploads/gilkey_comined.png)
From Wikipedia:
John Charles Gilkey is a prolific book and document thief who has stolen approximately $200,000 worth of rare books and manuscripts. […] His motives for the thefts were personal: he saw an expansive library as a sign of being upper-class.
Learn more in this Criminal podcast episode.