As I said on the other thread, I will be interested to read the sentencing remarks once they are released.
That might shed more of a light on why it's a manslaughter conviction and not a murder one.
I think it's important to remember that they both carry the same maximum sentences, that trials are held to obtain justice for both the victim AND the offender (i.e. the offender, if guilty, should be punished but punishment has to be fair and the victim can't demand that someone's hand is cut off for nicking a tenner, for example), although the latter is often forgotten or ignored, and that the state needs a watertight case in order to be able to convict someone of a crime and remove their liberty from them. "But it's obvious he's a murdering bastard" won't cut it.
Murder is a hard charge to prove beyond reasonable doubt. And that's the key - beyond reasonable doubt? Did he kill her? No question, he admitted it. Did he intend to kill her? That's where it gets tricky. Until we can learn to minds (or the killer admits it), we have to look at circumstancial evidence. The only person who truly knows is the killer, the rest of us are making educated guesses.
He's not getting away with anything - just like those convicted of PC Harper's killing didn't - he's been convicted of an extremely serious crime.
Like I say, I will be interested to read the sentencing remarks.