The two men convicted of murdering Aamir Siddiqi will be sentenced at Swansea Crown Court this morning.
Jason Richards, 38 and Ben Hope, 39, were found guilty of stabbing the 17-year-old A-Level student to death on his doorstep in Roath, Cardiff, and attempting to murder his parents in April 2010.
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The heaviest bursts are expected in the south and east, with some western areas either remaining dry or becoming dry by dawn.
Many places will start dry, but rain in the southeast will spread to most for a time overnight.
The family of Isaac Nash who went missing after being swept out to sea last summer have presented a cheque for £10,000 to the RNLI.