The scene of the second collision on Streatham High Road in which a woman waiting at a bus stop was killed. The occupants of the Audi left the scene before officers arrived.
More top news
Two police officers helping to guard diplomats have been sacked for sharing pornographic images on their mobile phones.
A 32-year old man from Hampton has been jailed for five years historic sexual assaults in the late 1990s.
A teenager who was mistakenly released from prison after he was arrested on suspicion of attempted murder has been detained by police.