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At least 93 people were killed in the attacks. Part of Breivik's manifesto was taken almost word for word from the first few pages of the anti-technology manifesto written by "Unabomber" Ted Kaczynski, who is in federal prison for mail bombs that killed three people and injured 23 others across the U.S. from the 1970s to the 1990s.
Author: Edecio Martinez
Credit: Rex Features/AP Images