Her husband Simon Monjack was a lot like that crazy Hollywood hanger-on, Blake Leibel, who scalped his fiance.
Two Jewish BS artists from Commonwealth nations (Monjack - England, Leibel - Canada) who went to Hollywood and tried their best to make it big with some ridiculously inferior projects, became attached to beautiful women, and caused their demise.
Murphy's husband, Simon Monjack is definitely the lesser of the two evils, though, as Blake Leibel was an outright gory psycho killer.