S1, E2: in 1981 betting shop manager, John Suffield, was murdered in Toxteth, Liverpool. The vicious attack sent shockwaves through the community and two young black men were convicted of the murder. But both men continued to plead their innocence. One suspect, John Kamara, eventually had his conviction quashed after 19 years in prison. Rowe goes in search of what may have led to his wrongful conviction.