David Cameron said he was focussed on the economy after the rows within his party on Europe and gay marriage.
The Prime Minister told BBC Radio 4's Today programme that it was "right" to tackle the issue of same-sex marriage and claimed there was a "high degree of unity" amongst the Conservative party on Europe.
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Voting that had been expected on Thursday will now be held Friday instead.
Police were called in amid fears the man may have been poisioned.
Williams is charged with first-degree murder without premeditation, a probation violation and for not having a valid driver’s licence.