@Cam77
I think a lot of the public - myself included, have a problem with the the very definition of manslaughter.
IMO if you violently assault somebody and you are the instigator of physical violence, and they die as a result of that assault, then you should be charged no differently as if you actually intended to kill them. “It was an accident” doesn’t bring that person back so I don’t see why it should reduce your sentence.
I think that's true, a lot of people do feel that way, most especially in a case like this where they suspect that it really wan't an accident at all.
However, I'd suggest if you put another case in front of them, say two normal young men about to leave school get into a fight about something and one throws a punch and they get into a fight, and the other ends up accidentally dead at the end of it, people might feel differently about treating it as murder.
Presumably in that case too, premeditated murder would be seen as the same as murder where there was no premeditation since being dead is the same either way. So the fellow who accidentally killed another fellow in a fight would be the same as the man who plans to kill his wife and take the insurance money, or a planned execution in a criminal gang.