Melanie Smith will be sentenced on 8 May for murdering five members of the same family in a flat fire in Prestatyn.
Mr Justice Griffith-Williams warned the 43-year-old that she should expect a life sentence.
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Wales scrum-half Gareth Davies says the Scarlets mean business in Saturday's European Champions Cup semi-final against Leinster.
The MP has become Welsh Labour's first deputy leader after the result was announced at the Welsh Labour conference in Llandudno.
At Welsh Labour's conference Carwyn Jones is expected to make a speech containing pledges for his party and the wider public