The Homicide and Major Crime Command are still trying to piece together the events of the previous evening into the early hours of the 1 March. We are in the early stages of this investigation and retain an open mind as to the motive of this ferocious attack.
Aaron and Josiah were in a black Fiesta in Montague Road and both were stabbed several times as they sat in the vehicle. The London Ambulance Service made a significant effort to save their lives but unfortunately both later died at the scene.
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A 24-year-old man has been arrested on suspicion of murder after the body washed up on the Thames shoreline.
Seven people have now been arrested after a man died from serious head injuries
The 38-year-old officer was on his way home from a night shift when he collapsed. His death is not being treated as suspicious.