The blast destroyed one third of the federal building and destroyed or damaged more than 300 other buildings.
The bombing was carried out by Timothy McVeigh and Terry Nichols, both angry at the government over the standoffs at Ruby Ridge and the Branch Davidian compound in Waco. April 19 was the anniversary of the end of the siege at Waco.
McVeigh and Nichols were both convicted of the bombing. McVeigh was executed in 2001, and Nichols is currently in prison serving a life sentence.
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