Question: How many people did the terrorist, who was convicted by the Norwegian jurist, kill in his 2011 attacks?

Context articles: Johan Castberg
Ragnhild Hennum
Ole Thomesen
Fredrik Heffermehl
Inga Bejer Engh
Svein Holden
Gunnar Jahn
Mitt lille land
Hagbard Emanuel Berner
Anders Behring Breivik

Johan Castberg (21 September 1862 – 24 December 1926) was a Norwegian jurist and politician best known for representing the Radical People's Party (Labour Democrats).
 He was a government minister from 1908 to 1910 and 1913 to 1914, and also served seven terms in the Norwegian Parliament.
 The brother-in-law of Katti Anker Møller, the two were responsible for implementing the highly progressive so-called Castberg laws, granting rights to children born out of wedlock.
 Altogether, he was one of the most influential politicians in the early 20th century Norway.
Ragnhild Helene Hennum (born 11 June 1967) is a Norwegian jurist, academic administrator and women's rights leader.
 She is Professor of Public Law at the University of Oslo Faculty of Law and served as Pro-Rector of the University of Oslo, the university's second highest official, 2014–2017.
 She previously served as the university's Vice-Rector 2009–2014.
 Hennum's research fields are criminal law, criminal procedure and sociology of law, and she is a specialist on child sexual abuse, sexual violence in general and forced marriage.
 She is President of the Norwegian Women's Lobby, the umbrella organisation for the Norwegian women's movement.
Ole Thomesen (12 November 1817 – 8 October 1905) was a Norwegian jurist and politician for the Liberal Party.
 A member of the Norwegian Parliament for five terms, he became known as a radical and liberal politician.
 He spent his professional career as a jurist working in various parts of Eastern Norway.
Fredrik Stang Heffermehl (born 11 November 1938) is a Norwegian jurist, writer and peace activist.
 He formerly worked as a lawyer and civil servant from 1965 to 1982 and was the first secretary-general of the Norwegian Humanist Association from 1980 to 1982.
 He later made his mark as a writer and activist for peace and against nuclear arms.
 He is the honorary president, and former president, of the Norwegian Peace Council, a former vice president of the International Peace Bureau, which received the 1910 Nobel Peace Prize, and a former vice president of the International Association of Lawyers against Nuclear Arms.
Inga Bejer Engh (born 31 December 1970) is a Norwegian jurist and prosecutor.
 Together with prosecutor Svein Holden she was prosecuting terror suspect Anders Behring Breivik in the 2012 trial following the 2011 Norway attacks.
Svein Holden (born 23 August 1973) is a Norwegian jurist having prosecuted several major criminal cases in Norway.
 Together with prosecutor Inga Bejer Engh Holden prosecuted terror suspect Anders Behring Breivik in the 2012 trial following the 2011 Norway attacks.
Gunnar Jahn (10 January 1883 – 31 January 1971) was a Norwegian jurist, economist, statistician, politician for the Liberal Party and resistance member.
 held several important positions, such as Norwegian Minister of Finance and Customs from 1934 to 1935 and in 1945, chair of the Norwegian Nobel Committee from 1941 to 1966 and Governor of the Central Bank of Norway from 1946 to 1954.
"Mitt lille land" (in English: "My Little Country" or "My Small Country" ) is a song by Ole Paus, written in 1994 as a lyrical description of Norway.
 The song gained strong popularity following the 2011 Norway attacks, which led to it being described by the media as "the new national anthem."
 According to the NRK, the song "came to symbolize the sorrow many people went through."
 The song featured most prominently in all the memorial ceremonies following the attacks.
 The NRK memorial concert (30 July 2011) following the attacks was named "Mitt lille land," and the concert opened with "Mitt lille land" sung by Maria Mena.
 The national memorial ceremony (21 August 2011) was opened with "Mitt lille land" sung by Susanne Sundfør, followed by a speech by King Harald V.
 On the Norwegian Constitution Day in 2012, the NRK broadcast was opened with "Mitt lille land."
 The Norwegian People's Aid and Sony Music released a memorial album titled "Mitt lille land" and Gyldendal Norsk Forlag published a memorial book also titled "Mitt lille land" during the autumn of 2011.
 Numerous Norwegian artists have recorded cover versions of this song, among them Sondre Bratland, Christine Guldbrandsen, Maria Solheim, Thomas Dybdahl, Mari Boine, Anne Grete Preus, Haddy N'jie, Kurt Nilsen, D.D.E., Sølvguttene, Tone Damli Aaberge and Maria Mena.
Hagbard Emanuel Berner (12 September 1839 – 24 January 1920) was a Norwegian jurist, Liberal Party politician and newspaper editor.
 He initiated a series of long-lived enterprises, including the publishing house Det Norske Samlaget, the newspaper "Dagbladet" and the Norwegian Association for Women's Rights.
 Berner served as a liberal Member of Parliament, as Auditor General of Norway and as Burgomaster of Christiania.
Anders Behring Breivik (] ; born 13 February 1979), known as Fjotolf Hansen from 2017, is a Norwegian far-right terrorist who committed the 2011 Norway attacks.
 On 22 July 2011 he killed eight people by detonating a van bomb amid Regjeringskvartalet in Oslo, then shot dead 69 participants of a Workers' Youth League (AUF) summer camp on the island of Utøya.
 In August 2012 he was convicted of mass murder, causing a fatal explosion, and terrorism.