Nicholas Lovell will be sentenced on the 22 May for causing the deaths of Ross and Clare Simons by dangerous driving after he collided with their tandem bike near Bristol in January.
Mr Lovell's partner Louise Cox has pleaded guilty to perverting the course of justice and will also be sentenced next month.
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A woman who was "dragged away" by a crocodile as her friend tried in vain to rescue her is reportedly still missing in Australia.
Police say at least one gunman armed with a high-powered rifle, began "shooting randomly" resulting in the death of a man in his 50s.
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