Well I'm not sure I'm wrong - I'm no expert but there was someone who seemed to understand science and she did explain it differently. But you have posted some relevant info so I'm not going to argue on the scientific points. My main point was the casual use of the word 'accidentally'. I just wanted to highlight that just because someone kills in a fit of rage, it doesnt mean it was an accident. I want to highlight the onus of personal responsibility on people for their violent actions. As far as i'm concerned putting your hands around someones throat and squeezing until they lose consciousness, or die, is not an accident, nor is smothering. If you are going to do those things you know you are trying to kill them. Just because after theyve died and you suddenly decide to think about the consequences to yourself, you wish you could reverse it, also does not mean it was an accident.
I accept that in the case of battering, someone can acquire a brain injury that haemorrhages later and causes death, or there are fatal injuries that can be sustained from falling and hitting your head on concrete after being pushed for example, so in those cases there can be an accidental death. That's my view and the main point of my post earlier. I'll leave it at that.