A 34-year-old man was stabbed to death after intervening in a fight at an illegal rave in south London, the Metropolitan police have said. Sean Williams was stabbed in the neck in the early hours of Sunday morning after attending an unlicensed music event at Culverley Road in Catford, the Met said. Police and the London ambulance service were called to the nearby Thornsbeach Road to reports of a stabbing, and Williams died at the scene shortly after 6.15am. DCI Kate Kieran, who is leading the murder investigation, said: “At this early stage we believe that both the victim and the suspect had attended an unlicensed music event, during which a fight broke out between two men. The victim intervened in this fight and suffered a fatal injury. “I know there were around 100 people at the event and someone who was there knows the identity of the person responsible. I want these people to do the right thing and get in touch. I also urge the person responsible to hand themselves into police.” The Met said no arrests had been made. A second victim, 37, went to a south London hospital with a knife injury to his hand that was not life-threatening, police said. Anyone with information is asked to call police on 101 or tweet @MetCC, quoting 1832/06Sep. Alternatively, people can contact Crimestoppers anonymously on 0800 555 111 or visit crimestoppers-uk.org.