US man charged in plot to bomb Capitol

Alleged jihadist, 20, was arrested after he purchased two guns and 600 rounds of ammunition in Ohio

A 20-year-old man's Twitter posts sympathizing with Islamic terrorists led to an undercover FBI operation and the man's arrest on charges that he plotted to blow up the US Capitol and kill government officials.

Christopher Cornell was taken into custody after he purchased two semi-automatic weapons and 600 rounds of ammunition in Ohio, according to a criminal complaint.