Nicholas Lovell and Louise Cox will both be sentence within four weeks.
The public gallery was packed with the victims' family and friends as well as supporters of the pair who entered guilty pleas.
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Mrs Justice Nicola Davies will sentence Berlinah Wallace, 48, at Bristol Crown Court.
After cool early morning weather bringing mist and fog, there should be a bright afternoon for most parts of the region.
Any early mist and fog will soon clear, with unbroken sunshine through the day for most.