Norwegian killer Anders Behring Breivik has begun his 21 year jail term for the murder of 77 people in July last year.
Sharidyn Svebakk was the youngest of his victims at just 14. Her funeral took place in Oslo one year ago.
Sharidyn’s mother Vanessa said she was glad her daughter’s killer was behind bars.
“Right now I am relieved, which makes me extremely emotional after 13 months. I couldn’t have asked for a better outcome,” she said.
Breivik will not challenge the sentence, which will be served in solitary confinement.
He said he did not want to recognise the legitimacy of a court which had “sided with a multi-cultural majority in parliament.”
The 33-year-old tried to apologise to “militant nationalists” for not killing more people, but the judge quickly cut him off.
Then Breivik made one last defiant salute before being led away by police.