A jealous boyfriend beat a mother-of-three to death in a violent rage after accusing her of being unfaithful, a jury at Bradford Crown Court heard.

Santosh Kumar, described as being powerfully built, left Samantha Warren with bruises, broken bones and an unsurvivable head injury after attacking her at her home in Libbey Street, Manningham, Bradford, on April 26.

Miss Warren, with was 5ft 3ins tall and weighed eight-and-a-half stone, suffered fatal bleeding on the brain and died in Bradford Royal Infirmary three days later.

She also had two black eyes, a fractured nose and a broken rib and finger.

Kumar, 43, of Crosley Wood Road, Bingley, has pleaded guilty to the manslaughter of Miss Warren, 33, but denies her murder.

Prosecutor Paul Greeney QC told the jury yesterday that paramedics called to Miss Warren’s home shortly before 11pm on April 26 found her unconscious and not able to be revived.

Mr Greeney alleges Kumar intended to cause her really serious injury. He was insecure and jealous and constantly accused her of being unfaithful.

Although text messages between them in the months before her death expressed real affection, there was also “a darker side to their relationship,” Mr Greeney said.

In a “chilling” text message three months before Miss Warren’s death, Kumar threatened to break her jaw.

In another message, Miss Warren accused Kumar of smashing her door, bruising her face and strangling her.

Mr Greeney said Miss Warren, a part-time care assistant, left work on the morning of April 26 happy and uninjured.

The jury heard that Kumar attacked her that afternoon because he discovered she had taken her car 12 months earlier to the garage of a man he suspected her of having a relationship with.

“Kumar became enraged and it was that jealous rage that drove him to kill Samantha Warren,” Mr Greeney said.

By 4.30pm, Miss Warren had two black eyes, a bust lip and blood in her hair.

Kumar drove her to hospital but she did not go in. A porter saw her slumped in the footwell of the car before Kumar took her home.

The porter called the police and an officer went round to her house, kicked the door and shouted, but it was in darkness and no-one answered.

Mr Greeney said Kumar and Miss Warren were inside.

By then, she was incapable of answering the door and, Mr Greeney alleged, Kumar did not want his violent assault revealing.

Miss Warren was left to deteriorate for another four hours before one of Kumar’s sisters alerted the emergency services.

She was admitted to BRI intensive care unit but her injury was unsurvivable.

The trial continues.