We are raiding the Audio Long Read archives to bring you some classic pieces from years past, with new introductions from the authors. This week, from 2017: After police failed to solve his son’s murder, Francisco Holgado infiltrated the local criminal underworld in pursuit of those responsible. He became a national hero – but at what cost? By Matthew Bremner. Help support our independent journalism at
theguardian.com/longreadpod