I'm not sure I knew about Kai before watching this. It's a watchable documentary but the participants in it make all sorts of irritating biased claims that suit their angle. To begin with I personally did not think of Kai's behavior as heroic even for a split second. He seemed chaotic in his speaking, was showing how he hammered the other person with way too much enthusiasm and just showed signs immediately that he's someone to beware of. The fact that so many wanted to see him as a hero (and are still speaking as though he had that great charisma factor) and how the media sensationalized him should be a deeply disturbing commentary on the state of what society values at any time and how media plays a role. Since the story is real and interviews are somewhat interesting it was watchable. But unlike many other documentaries, I don't see much of a lesson learned or any critical discussion to stimulate ideas that are useful. The underexplored murder also cast a shadow on the elderly victim, and I felt that the victim may be victimized again. I don't know what happened but we're only hearing the side of the murderer. Not the best doc. And certainly a real story that none should be proud of particularly the media. Face up to the consequences of your decisions.