Jill Dando, a well-known presenter for the BBC, was killed outside her home in west London on 26 April 1999. She was shot in the head by an unknown attacker as she approached her front door. Her body was found 14 minutes later, and she was pronounced dead. The Metropolitan Police launched Operation Oxborough, one of its largest murder investigations, but the case remains unsolved more than 27 years later. Several theories have been proposed about the murder. These include the possibility of a jealous ex-partner, obsessive stalkers, or even a Serbian hitman targeting her for her coverage of the conflict in the Serbia-Kosovo war. Just 20 days before her death, Dando had presented a BBC appeal for the Kosovo Crisis, raising over £1 million for refugees fleeing the violence. A call to the BBC's former head of news, Tony Hall, from a man with an Eastern European accent, threatening retaliation against British forces, was later believed to be a hoax. Barry George was the only person to be tried for Dando's murder. He was arrested ten months after her death and was found guilty in 2001. However, his conviction was overturned in 2007 after the evidence of firearms residue was discredited. George remains free and has not been charged again. The Metropolitan Police has confirmed it is re-examining enhanced CCTV footage of a mystery man at Putney Bridge station. This is the first time the force has followed a new lead since the investigation was previously classified as "inactive." A witness claimed the same man was seen "running for his life" near the scene of the shooting. Recent advancements in CCTV enhancement technology have allowed investigators to re-examine original footage from Putney Bridge train station. Other theories suggest Dando could have been murdered by a professional hitman seeking revenge for her work on Crimewatch, a programme that featured crime investigations, or by a mentally unstable fan. A theory linked to the Jimmy Savile sexual abuse scandal suggested she had been investigating a paedophile ring at the BBC, but the BBC denied this claim. Despite these various theories, the case remains open, with no confirmed resolution.