In the latest episode of Vanity Fair's "Psych of a Psycho" YouTube series (previous subjects include Game of Thrones' "hideous and vile" juvenile criminal King Joffrey), host Candice DeLong, a former FBI profiler, breaks down the psychology of Breaking Bad's Walter White.

As anyone who's seen the show can attest, Walter's evolution from cancer-stricken chemistry teacher driven to desperate measures, to power-mad egomaniac fond of jaunty hats, is one of TV's most searingly memorable character arcs. Watch this short video to learn more about what motivated his crimes ... and what propelled him forward once he got into "the empire business."

[Via Laughing Squid]