Amy Leigh Barnes had been stabbed at least nine times
A young model dialled 999 as she lay dying and pleaded for help saying her boyfriend had "stabbed her to death", a court has heard.
Amy Leigh Barnes' father found her in a pool of blood at her grandmother's house in Bolton, Greater Manchester.
The 19-year-old's boyfriend, Ricardo Morrison, denied murdering her when he appeared at Manchester Crown Court.
His police officer mother, Pc Melda Wilks, from the West Midlands, was also in court and denies assisting her son.
The court heard that Ms Barnes, a part-time model and actress, had been killed with a kitchen knife in November last year.
Stuart Driver, prosecuting, recounted her desperate plea to the operator at the end of her 999 call.
"I'm dying. He's stabbed me to death. I'm dying. Please help me."
The operator asked who had stabbed her and she said, "My boyfriend", the court heard.
He said Ms Barnes had been slashed across the face and she had five wounds to her chest and four to her back, several of which had penetrated her liver.
At this point the defendant turned his back and ran towards the cells.
Following Mr Morrison's return to the dock, Mr Driver told the court that Ms Barnes had tried to end the relationship that day and he had attacked her before leaving, locking her in the house.
Amy Leigh Barnes rang her mother in tears shortly before she was killed
Later, she rang her mother in tears, and it was agreed her father would come to pick her up.
Two minutes after that call ended she dialled 999 to say she had been "stabbed to death".
"Her father turned up, opened the front door and found his daughter at the bottom of the stairs, a pool of blood beneath her.
"You can imagine his reaction, his panic," Mr Driver said.
Ms Barnes was taken to the Royal Bolton Infirmary where she died three hours later.
The court heard that a neighbour had spotted a man, fitting Mr Morrison's description, on wasteland shortly after she had been attacked.
"The witness said the man bent down and put his hand into a puddle and appeared to be rinsing his hands," Mr Driver said.
A blood-stained knife, which had DNA belonging to the young model, was found stuck in an abandoned car seat on the wasteland.
Pc Melda Wilks sent texts to Ms Barnes' mother after the murder
The defendant caught a coach to Birmingham where his mother, Pc Wilks, who lives in Rubery, picked him up, it is alleged.
Mr Driver told the jury that she washed his jacket "for a criminal purpose to remove any forensic scientific evidence".
Ms Barnes's mother, Karyn, phoned Pc Wilks from the hospital soon after the attack.
"She told her that Amy had been stabbed and accused her son, Ricardo Morrison, of doing it," he said.
Pc Wilks then sent a text to Ms Barnes' mother: "I know what my son has done is unforgivable. No need to be rude. Now I understand more about your family.
"Do not call me again. My son will be dealt with by law."
Morrison said in his defence statement that he was not at the house when the attack took place.
He said he returned to the house in Bolton, discovered she had been stabbed and put her in the recovery position before he left the scene.
Mr Driver disputed this, saying it would have meant that another person must have stabbed Amy in the space of two minutes - the gap in which Ms Barnes finished on the phone to her mother and when she dialled 999.
The trial continues.