'If I panic I die'

One Monday morning, Stephen is meeting with his boss in a crowded coffee shop. Minutes later he is at the centre of a horrific and brutal crime scene — his life hanging in the balance. The events leave him deeply scarred, both mentally and physically, but it prompts Stephen to press the reset button for himself and his family.

For the first time publicly, Stephen tells his story to Dr Sian Williams, in the hope that sharing his experience will help him and others too.

Warning: This episode contains graphic descriptions of violence. Details of help and support are available through the BBC Action Line at bbc.co.uk/actionline.