As tens of thousands of tributes poured in from across the nation for the PC Fiona Bone and PC Nicola Hughes, more than one Facebook page was set up in praise of the suspect held by police.
One was titled Dale Cregan OBE, with internet "trolls" posting messages claiming the suspected killer was a "hero".
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The PM promises to double to 200,000 the number of homes built under an existing scheme aimed at easing Britain's housing shortage.
The Met Office has weather warnings in place for snow and ice until 10am in the north and west.
The plan, which would effectively strip banks of the benefit of recent corporation tax cuts, forms part of the party's election manifesto.