years of frustration boil over and lead to the worst rioting in a generation. tottenham, england. august 6th, 2011. >> we want justice! >> when do we want it? now. >> a crowd gathers outside a police station demanding answers about the shooting death of a man named mark duggan. >> the beginning of all this is the shooting of a young man in north london. his shooting by the police. protests as a result of that shooting. the protests then turning into something more violent. >> independent video journalist jason parkinson hears about the protest and races to the scene. >> i'd already spotted on twitter there was a lot of news feed coming out saying there's been a protest in tottenham about the shooting of mark duggan. and there's two police cars on fire outside the police station, and the riot police are moving in. the first thing that i noticed was just how much was on fire. and i mean, we're not talking a