Slums like Five Points triggered discussions of affordable housing and slum removal. It developed from a shanty town into an urbanized slum. The Old Town became an increasingly dilapidated, overcrowded slum with high mortality rates. He cashes in on the ignorance to slum dwellers. Kibera is the largest slum in Nairobi, and the largest urban slum in Africa. Poor youths frequently robbed and pickpocketed men walking on the streets of slum Birmingham. The three formed the rap group called Slum Village. The area acquired a bad reputation from exaggerated reports of opium dens and slum housing. It also started crime prevention programmes such as education of street children and slum kids. North Kensington was once well known for its slum housing. Yadav ruled a gang of criminals who controlled the Kasturba Nagar slum. Noteworthy are her early collaborations with J Dilla of Slum Village. Much of the filming was in the Kibera slum. In 2000 there were over one million people living in about 800 slum settlements. Violence often leads to retaliatory and vigilante violence within the slum.