article_snippet: The 36-year-old murdered 77 people and injured more than 300 - many of them teenagers - in 2011 after detonating a bomb in Oslo and carrying out a mass shooting on Utoya Island.
article_snippet: Mass killer: The 36-year-old murdered 77 people and injured more than 300 - many of 77 people teenagers - in 2011 after detonating a bomb in Oslo and carrying out a mass shooting on Utoya Island .
article_snippet: Lives destroyed: Mourners leave tributes to teenagers shot by Breivik on Anders gun rampage on Utoya Island .
article_snippet: On July 22, 2011, Anders first killed eight people after setting off a bomb outside government buildings in central Oslo.
article_snippet: Anders then shot dead 69 teenagers attending at Workers' Youth League summer camp on the island of Utoya, indiscriminately shooting students at point-blank range as Anders trampled over corpses .
article_snippet: It was to became the largest killing spree by a single person in history.
highlights_snippet: Norwegian mass killer shot dead 77 and injured 300 in gun rampage in 2011 .
  