On April 19th, 1995, two years after Waco. A truck bomb was set off next to the Alfred P. Murrah building. The act of domestic terrorism claimed 168 lives, while injuring 800. The response was swift, and with a little bit of luck, the main individual, who drove the truck to its location, was placed in jail on unrelated charges within hours of the bomb detonating. The two men were charged quickly, along with a man who had knowledge of the impending attack and failed to notify anybody. 

Sources:

Oklahoma City Bombing:American Terror

An American Bombing: The Road to April 19th

Oklahoma City Bombing: One Day in America

https://www.oklahoman.com/story/news/2003/05/08/witness-recalls-renting-truck-to-murrah-building-bomber/62044944007/

https://www.deseret.com/1997/5/10/19311225/shop-owner-recalls-renting-ryder-truck-to-mcveigh/

https://memorialmuseum.com/wp-content/uploads/2019/09/okcnm-evidence-what-story-does-it-tell.pdf

https://www.britannica.com/event/Ruby-Ridge

https://encyclopediaofarkansas.net/entries/covenant-the-sword-and-the-arm-of-the-lord-4031/

https://www.britannica.com/topic/The-Covenant-the-Sword-and-the-Arm-of-the-Lord

https://sk.sagepub.com/ency/edvol/terrorism2ed/chpt/covenant-sword-the-arm-the-lord

https://www.ebsco.com/research-starters/history/waco-siege

https://www.pbs.org/wgbh/pages/frontline/waco/topten.html

https://peterlance.com/wordpress/?p=218

https://www.britannica.com/biography/Terry-Nichols

https://www.fbi.gov/history/famous-cases/oklahoma-city-bombing

https://apnews.com/article/oklahoma-city-bombing-anniversary-explainer-2c2193704384ac2c154b0b90610ade69

https://law.utexas.edu/wp-content/uploads/sites/34/2016/09/15NIcholsFinal.pdf https://archive.nytimes.com/www.nytimes.com/library/national/122497okla-bomb-rdp.html 

https://www.counterextremism.com/extremists/terry-nichols 

https://law.justia.com/cases/federal/district-courts/FSupp2/132/931/2457126/ https://www.famous-trials.com/oklacity