A 15-year-old boy has admitted the murder of the "perfect match" kidney donor of a burns victim.

The youngster, who cannot be identified for legal reasons, was yesterday due to stand trial at Bradford Crown Court.

But, when the case was called, he admitted stabbing to death 20-year-old Patrick "Paddy" Barker in Hazel Mount, Windhill, last November.

Earlier this month, Mr Barker's mother revealed her other son Robert, 21, needed a kidney transplant after suffering 75 per cent burns to his face and body in a woodland den fire 11 years ago.

After the stabbing incident, in which Robert was also wounded, paramedics rushed him to Bradford Royal Infirmary where he spent a week recovering, before being transferred to St Luke's Hospital for two weeks as he needed specialist dialysis of his kidneys which had been damaged in the fire.

Months before the stabbing, doctors had declared Paddy a perfect donor match but his kidneys were too damaged in the attack for surgeons to save and give to Robert.

Now Robert is facing an agonising wait on the NHS transplant list - along with another 5,736 people in the UK - hoping for a new kidney.

Yesterday the teenage killer also faced a charge of attempted murder in relation to Robert Barker, who suffered stab wounds to his neck and back. But prosecutor Andrew Campbell QC said his guilty plea to an alternative allegation of wounding with intent to cause grievous bodily harm was acceptable.

Mitigating barrister Guy Kearl QC said his client was aware of the sentence which would follow for the offences, but he asked for the case to be adjourned to enable a report to be prepared by the probation service's youth offending team.

Mr Kearl indicated that psychiatric and psychological reports already prepared on the boy would be provided to the prosecution and the court.

The Honorary Recorder of Bradford, Judge Stephen Gullick, told the youngster that he would be sentenced on April 20 and he remanded him in custody until then.

No details were given during yesterday's brief hearing about the circumstances surrounding the attack.