As a non-American who's overexposed to second amendment rants, I'm slightly baffled as to why there weren't any guns. The sheer incoherence of the protesters may have been a factor.
edit: I see in a sibling thread that you have changed your goalpost to be "bomb in the capitol". I tried being reasonable but you don't want to listen to reason.
edit 2: The person you replied to didn't explicitly specify the location, but reporting on these bombs found at the RNC and DNC headquarters was widespread. A good-faith assumption would have been that they were talking about what was widely reported on and didn't feel the need to justify details to someone who is being needlessly pedantic to try and trip people over their own words.
Did you at least learning something new here? About the bombs?
There were guns. And bombs. And...
There was perhaps insufficient organization for the armed participants to employ them effectively.