'My childhood was fuelled by violence and abuse'

What makes some children fall into a life dominated by gangs and violence and prison and loss?

Daniel and Aliyah have both grown up in London. Both have become entangled in gang life and all of its associated dangers.

They don't know each other. But in many ways they have been living parallel lives. They tell their stories for the first time.

Produced by Claire Kendall, Jeremy Cooke and Stephen Fildes