Listen to the short Interview with Mohamed Abulahi, one of the members of Y.R.S.H.G. below:

You can also read about Youth Reform Self-Help Group in these articles:

The Guardian: Gangsters swap guns for greenhouses

France 24 News: Slum turned vegetable garden

AFP/ Yahoo News: Nairobi criminals dump old ways and go organic

There is also a Video, you can watch following the Link below: