After a six-week trial, four men have been convicted in the United States in a high-profile case connected to the storming of Capitol Hill in Washington two years ago. The four members of the far-right Proud Boys group were convicted on a charge of seditious conspiracy, defined as a plot to overthrow the government. US Prosecutors have now charged more than 1,000 people with offences in relation to the January 6, 2021 attack, but there is little agreement in a bitterly divided America about exactly what happened on that day. The dispute threatens to poison American democracy. The BBC's David Grossman was there as events unfolded and filmed the Proud Boys and spoke to their leaders. He assesses what this infamous date means for the United States.