On 1 May 1820, outside Newgate Prison, in front of a dense crowd, five of the Cato Street conspirators-Arthur Thistlewood, William Davidson, James Ings, Richard Tidd and John Brunt-were hanged for high treason. Then they were decapitated in the last brutal act of a murderous conspiracy that aimed to assassinate Prime Minister Lord Liverpool and his cabinet and destroy his government. The Cato Stre...