The judge in the Denbigh mum murder trial is now summing up following closing speeches by both the prosecution and defence.

Prosecuting barrister David Elias QC said that Jason Cooper had done exactly what he said he was going to do.

And when he had done it he was calm and purposeful about why he had done it.

The defence, he said, had gone “nowhere near” satisfying the jury that it was anything other than the murder of Laura Stuart.

Mr Elias said that the evidence from two psychiatrists did not support a manslaughter verdict.

His intention was clear from messages to friendS after he had stabbed her in which he said he had murdered her – at a point when she was still fighting for her life.

Mr Elias said that the defendant had smiled after the stabbing and said “I’ve done it. I said I would.”

His last message to Miss Stuart was that she had pushed him as far as she could and that his advice was her to “run, run, run.”

Cooper had asked her if she was willing to die?

The defendant, he said, was in control and planning what he did. He had stalked her with a knife in his pocket – prowling around Denbigh for an hour and a half waiting for her to return from a pub.

It was a case of murder, he said.

Patrick Harrington QC said that he did not want to deflect the jury from reaching the correct verdict, which he said was manslaughter on the grounds of diminished responsibility.

He said that the text messages sent by the defendant at the time were the outpourings of a man in a deep depression.

It was, he said, the behaviour of a troubled soul in turmoil.

Cooper’s condition had deteriorated over time and had lost weight.

Mr Harrington said that the explosion of violence was caused by the known psychiatric condition from which he suffered.

Cooper, he said, had committed terrible crimes in a terrible way and should be convicted and punished – not for murder but for the grave crime of manslaughter.

The prosecution say Cooper brutally stabbed his former partner with a kitchen knife after he lay in wait for her as she returned home from The Golden Lion and attacked a man who tried to protect her.

Cooper. 28 of St Hilary's Terrace, denies the murder of Laura Jayne Stuart, 33, and wounding David Roberts with intent to cause him GBH, in the early hours of August 12 last year.

The trial, before Mr Justice Simon Picken, is proceeding and the jury is expected to retire later today.