A woman was allegedly stabbed by her ex-boyfriend 80 times in what prosecutors called a “sustained and brutal” attack.
Horse sanctuary worker Laura Davies died outside her workplace in July 2015.
Laura, 21, was allegedly attacked by Jordan Taylor near the Essex Horse and Pony Protection Society base in Basildon, Essex, where she lived and worked as a groom.
Jordan, 22, of Basildon, is standing trial after denying murder at Chelmsford Crown Court.
Prosecutor Peter Gair said animal loving Miss Davies had told Taylor she wanted to end their relationship shortly before the incident late on July 3 last year.
He added: “We say her life was taken by this man during a sustained and brutal attack with a knife. She suffered 80 knife wounds to her body.
“That attack was as a direct result of her telling the defendant that their relationship was over.
“Whether it was motivated by jealousy or anger of a mixture of both and other emotions, he exacted a terrible revenge on her which caused her to die at the scene.”
The 21-year-old was stabbed 18 times in the face, six times on her right arm, 18 times on her left arm, 15 times on her torso, six times on her right leg, eight times on her left leg, eight times on her back and three at the back of her head.
Pathologist Dr Benjamin Swift said none of the individual wounds would have been enough to kill Miss Davies.
Her cause of death was given as shock, due to sudden blood loss.
Mr Gair said that the attack began inside Miss Davies’s flat which she had shared with Taylor.
Despite ending their relationship, she had chosen to allow Taylor to continue living there and had cooked a meal for them both.
Police later found plates of uneaten food on the kitchen table, suggesting events had escalated quickly.
Wearing just her pyjamas, she fled outside but Taylor followed, eventually killing her in an area known as the Wishing Well, Mr Gair added.
A witness arrived at the sanctuary to see a man holding a knife standing over a woman’s body.
He raised the alarm and when police arrived they found Taylor covered in blood.
Bruce Siequin, the passer-by who spotted the attack and called the police, told the jury: “As I was going down the stretch of road, I heard screaming coming from a female.
“I saw someone standing with a knife in their hand.”
When asked by Mr Gair what the person with the knife was doing, Mr Siequin responded by mimicking a downward stabbing motion with his right arm.
“He was crouching over a female. She was lying down on her back.
“I could hear the female saying: ‘Please stop.’
“When I saw what was happening, I dialled 999.
“I could see blood down one side on the man.”
Officers rushed to help Miss Davies and she gasped “help” before losing the strength to speak.
In the months before the killing, friends had become concerned about their relationship, the court heard.
Mr Gair said: “You will hear evidence that he would take umbrage at her working with other young men and displayed a controlling nature, telling her for example, what she could and could not wear.
“By the summer she had become quiet and subdued. It’s clear that towards the end of the relationship, it was not happy.”
The case continues.