New details are emerging on who Christopher Cornell is.



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In August, a confidential FBI source began to contact Cornell who responded via instant message that he had been contact with individuals overseas, but he did not believe that he would receive authorization to conduct a terrorist attack in the United States.



Cornell told the informant that they should go on with the attack.



"I believe that we should just wage jihad under our own orders and plan an attack," Cornell said to the informant.



Cornell met with the FBI informant Oct. 17 and 18 and again Nov. 10 and 11. Federal authorities say he discussed they would build, plant and detonate pipe bombs at the U.S Capitol. Then, Cornell and the informant would shoot and kill employees inside.



Cornell showed the informant on his computer that he researched how to construct pipe bombs and the cost of the guns they would buy for the attack.



On Tuesday and Wednesday, Cornell bought firearms and 600 rounds of ammunition at Point Blank Range and Gun shop on Harrison Avenue in Colerain Township Wednesday.



He walked out of the store and was tackled by an FBI joint terrorism task force in the store parking lot. Federal authorities seized the weapons and ammunition and placed the 2012 Oak Hills High School graduate under arrest.



Cornell publicly displayed anti-American sentiments in 2013 at a 9/11 memorial dedication, according to Green Township Police Chief Bart West.



The crowd blocked Cornell from sight as he held a sign reading "9/11 was an inside job." Chief Bart says officials only asked Cornell his name without further questioning, but that officers identified him from previous encounters.