16.40 UPDATE: With no trace of a gas leak to be found, Scotland Yard are saying this explosion might be murder. 10.00 Firefighters are still on the scene of a major suspected gas explosion which happened around 21.40 last night, on a residential street in South Harrow. The blast completed wrecked a house and 2 flats. At this stage, one man has been found dead and two more people are in hospital. At the height......