Women in Halloween costumes tried to stop looters in Frankfurt. On the night between October 31 and November 1, the mass youth demonstrations in Germany escalated into violent riots. Rioters smashed shop windows, looted shops and set fire to roadblocks. According to the German media, about 17 stores were damaged. The police used water cannons and arrested dozens of people. It seems the scariest thing about Halloween in Frankfurt wasn't the costumes after all.