He didn't hang himself. There are other methods to self-asphyxiate besides just hanging. The suicide was well planned and required acquisition in advance for the items utilized. He did not have any "help", as he didn't need any. Of this I'm certain. beyond that I'm not willing to discuss specifics, so don't ask.
I've never understood people's need to have all the gory details, along with pics. My guess is they have never seen the results of any tragic incident (or been oh so fortunate enough to never have had to live it, not just suicides, but car wrecks, shootings, stabbings, beatings, rape, abuse of children, animals, etc., torture ... the list, unfortunately is endless).
If everyone had seen even ONE of those things (as well as many others) they might be a bit more empathetic. At least that is my pipedream.