OSLO, Norway — Norwegian far-right extremist Anders Behring Breivik acquired the knowledge to carry out a bombing and shooting rampage on the Internet, studying case studies of al-Qaida and other attacks and reading more than 600 bomb-making guides, he told a court Friday.

On day five of his trial, the confessed mass killer said he studied the 1993 bombing of the World Trade Center in New York and Timothy McVeigh’s Oklahoma City bombing in 1995 in particular.

Source : Breivik studied ‘each’ al-Qaida attack before his own bomb-and-shooting rampage – Washington Post