A 20-year-old wealthy jeweller's son who murdered his girlfriend in Bournemouth simply considered her "a trophy", said the judge who sentenced him.
Sentencing Elliot Turner at Winchester Crown Court for murdering New Zealander Emily Longley, Mrs Justice Dobbs said: "Emily was a lovely, kind, fun-loving girl who brought a ray of sunshine to those she touched.
"That light has been extinguished suddenly and needlessly by you.
"You told your parents you loved Emily - you really do not know the meaning of love."
Turner, convicted at Winchester Crown Court, had a history of obsession with women and showed signs of jealousy towards Emily.
The judge said: "Loving someone is not telling them they are a whore, it is not trying to control them, it is not threatening them, it is not slagging them off to your friends.
"You did not love her, she was just a trophy," said the judge who said the relationship "if it can be called that" was all about Turner and about control using aggression and threats.
"You could not be seen to be dumped by her and be seen to look like an idiot to your friends," said the judge who described Turner's "arrogance" towards Emily when on remand and in the trial as "breathtaking", and spoke of Turner's "chilling" lack of remorse.
"It is particularly galling you conducted an interview with a New Zealand paper in which you appeared to show no remorse."
Emily's mother, Caroline, father, Mark, and younger sister, Hannah, heard the judge and outside court Mr Longley said he was satisfied with the outcome, adding: "We are pleased he is not on the streets now. He's an incredibly dangerous person and we are relieved he cannot do this again."