If you're interested in parasomnias and automatonism defences then this has some good explanations. However, this documentary was made without the blessing of the victim's family and the lack of detail about the victim is rather glaring and feels inappropriate. The commentary about Randy's upbringing with women and the pressures of masculinity are spot-on and extremely important in the context of male violence and femicide so please ignore the butthurt comments from the ignorant present on this IMDB page.