Watch free online now at snagfilms.com
you can watch this documentary online here
http://www.snagfilms.com/films/title/the_impaler/
I must say it starts off interesting but has quite a few boring stretches. But stay with it. There is a strange turn of events that occurs in the 3rd stage of the film that should be surprising to anyone who knew nothing about this guy until now.
As for the direction and editing of this film, I think (in my unprofessional opinion) it could have used more work. I'm not a fan of film makers injecting themselves into documentaries as they've done here so extensively. In some investigative style documentaries this works but in this film which is more of a story than a campaign coverage piece, it feels like they are meddling in the story itself and not merely covering it. I suspect it was difficult because even if it started out as a campaign coverage film, due to the course of events, morphed into something more.