“I HAVE just killed Warren. He told me to stab him in the throat so I did. When I started I just couldn’t stop.

“When I was doing it Warren said no. Oh God, what have I done?”

These were the words of a 25-year-old as he knocked on a neighbour’s door after killing a good samaritan who gave him a bed on Christmas Eve.

Joseph Storr moved from Stockton-Upon-Tees to Slough in November 2015, seven months after the schizophrenic stopped regularly taking his medication, a court heard.

His stepfather asked friend Warren Duke if he would let the young man stay with him.

The morning after Mr Duke’s 48th birthday, December 24, 2015, he phoned South Central Ambulance Service saying he was worried about his guest’s behaviour.

Berkshire’s Mental Health Trust made an appointment to see the young man who had previously been held in Rosehill Park hospital after cannabis-induced schizophrenia.

Later the same day, Storr phoned 999 saying he had stabbed Mr Duke.

Speaking after the sentencing, Angela Walker, Mr Duke’s partner, said: “His kindness was rewarded by being stabbed in the neck.”

She watched on from the public gallery as Storr was sentenced, carrying a white rose.

Ian Hope, prosecuting at Reading Crown Court on Thursday, June 22, said: “The operator heard the sound of resuscitation in the background.

“Mr Storr then went to a neighbour for help.

“A little later that neighbour opened his door. Mr Stoor said ‘I have just killed Warren.”

Mr Butler mitigating said: “There is nothing outside of this defendant’s mental health condition to say he poses any danger whatsoever.”

Judge Joanna Cutts said Storr was unlikely to pose any threat if he kept taking his medication.

“Mr Duke’s death was a tragedy for everyone concerned,” she said.

Storr, 25, of Jellicoe Close, Slough, admitted one count of manslaughter with diminished responsibility at the same court on June 14. He was told to pay a victim surcharge and sentenced to a hospital order.