This is the moment US protesters attempt to set fire to the Hall of Justice in Louisville and reportedly throw a Molotov cocktail at the building.A group of 30 people attempted to set fire to the Hall of Justice's main entrance shortly before midnight on 2nd August, according to the Louisville Metro Police Department (LMPD) in the US state of Kentucky.LMPD spokesman Lamont Washington said that a Molotov cocktail was thrown at the building, although he declined to provide further information on how many were thrown.He added that a large crowd of people in Jefferson Square Park fled before officers arrived.