Insurrectionists who invaded the US Capitol planned to take members of Congress hostage and perhaps execute them in a military-style offensive, prosecutors have alleged. Those arrested included a retired Air Force lieutenant colonel, Larry Rendall Brock Jr, 53, a veteran of four tours of Afghanistan, who reached the Senate floor in a helmet and body armour, and carrying zip-tie handcuffs. He appeared in shackles in a court in Texas where a judge released him on condition he surrender his guns. Assistant US Attorney Jay Weimer said: “He means to take hostages. He means to kidnap, restrain, perhaps try, perhaps execute members of the US government. His prior experience and training make him all the more dangerous." Mr Weimar said there were social media posts in which the retired officer had referred to a coming civil war. It emerged that at least 21 of the rioters - including Mr Brock - were current or former members of the US military or law enforcement. One was a retired elite Navy SEAL who posted on the internet he was "proud" of what happened. At one point in the Jan 6 invasion a line of men in green helmets stormed up stairs inside the Capitol in a military formation known as a "Ranger File" which is used by combat teams breaching a building.