The man who killed former Swedish Foreign Minister Anna Lindh must serve his life sentence in prison, the Swedish Supreme Court has ruled.
No more appeals may be made on behalf of Mijailo Mijailovic
The decision overturns an appeal court ruling that Mijailo Mijailovic, 25, should be confined in psychiatric care. No further appeals can be made.
Mijailovic was convicted of stabbing Ms Lindh to death in Stockholm last year.
He admitted the attack, but denied he intended to kill her, claiming voices in his head told him to do it.
The decision by a five-judge panel follows a Supreme Court hearing in November at which Mijailovic appealed for leniency on the grounds of mental illness.
In a statement on Thursday, the court said it recognised that Mijailovic had a "personality disorder" but this was not enough to call him "psychotic".
The court also rejected a request by Mijailovic's lawyers to reclassify the killing as manslaughter, saying it had been premeditated and was therefore murder.
Anna Lindh died after she was stabbed on a shopping trip
Goeran Fransson, a doctor who treated Mijailovic in prison and testified at the hearing, said he was not surprised by the ruling, the Associated Press news agency reported.
Mikael Nilsson, Mijailovic's lawyer, told Swedish radio his client wanted to be transferred to a prison in his parents' homeland of Serbia-Montenegro.
Local media reports suggested Mijailovic feared reprisals from fellow inmates if jailed in Sweden.
Mijailovic has regained his original citizenship in Serbia-Montenegro after giving up his Swedish citizenship earlier this year.
In July, an appeals court ordered that Mijailovic should receive psychiatric care, reversing earlier judgements that concluded he was not mentally ill at the time of the murder and should therefore serve a life sentence.
But the court ruling upheld the murder conviction against Mijailovic.
The BBC's Lars Bevanger in Oslo says the Supreme Court's final ruling on the case will be seen as a welcome close to a sorry chapter in Swedish history.
He adds that Ms Lindh's brutal murder shocked a nation accustomed to seeing its top politicians in public without bodyguards.
Ms Lindh died of her injuries on 11 September last year, a day after Mijailovic stabbed her while she was out shopping in a Stockholm department store.
The popular politician, who was married with two children, had been tipped as a possible future prime minister.