Joe O'Reilly has been convicted of bludgeoning his wife Rachel to death at their home in cold blood.
After nine hours of deliberations the jury returned a guilty verdict just before seven o clock.
The jury returned at with the issue paper and found him guilty by a unanimous verdict.
The verdict was greeted by loud cheers and applause from Rachel's family and friends.
Joe O'Reilly sat motionless and expressionless.
This means the jury have accepted the state's evidence that he lay in wait for his wife who was dropping off their sons at school at the crèche.
He struck her up to nine times with a blunt object in the main bedroom of their house.
Her car keys found under her body indicated that she had just returned from her short journey.
A forensic scientist told the court she had suffered a sustained assault and that there was blood splatter on the ceiling indicative of the perpetrator striking her a number of times while she lay on the floor
The state pathologist said she may have lain unconscious for a few hours before death.
Rachel had arrived back at around 9.41 that morning and he murdered her and washed her blood off him and was back in on the road within 18 minutes.
The accused told Gardai that he had been at the Broadstone bus depot inspecting buses at the time but mobile phone evidence showed that his phone was in the Naul.
He will receive a mandatory life sentence.