Nelufar Hedayat meets two criminal defence lawyers who fight for people's lives on death row. Sarah Belal is a barrister and the founder of Justice Project Pakistan. She represents the most vulnerable people on death row in Pakistan and abroad. Andrea Lyon is a lawyer, professor and former law school dean. She was the first woman to serve as lead attorney in a death penalty case, and she holds 19 wins in 19 capital cases. Her book is called Angel of Death Row. Produced by Alice Gioia.(Image: (L) Andrea Lyon. (R) Sarah Belal, credit Getty Images.)