To get the full details ...
Herzog doesn't address the full details of the crimes, or how Perry and Burkett were caught. So for those interested in understanding the full story, as background to these interviews, I've found an episode of the true-life crime show "Wicked Attraction" that covers this case.
It's called "Wheels of Steel", and several copies of it are up on YouTube. (The one I watched was at www.youtube.com/watch?v=qOzsQ2AJZsA.) It also makes sense of some of the claims by Perry and Burkett that seem contradictory in this film.
You might very well think that. I couldn't possibly comment.