A WITNESS told a murder trial of his shock after his cousin was suddenly stabbed "like a pig" by a man who knocked at the door.

Patrick Demeter told Leeds Crown Court how Marek Benak was drinking in his home in Great Horton Road, Bradford, into the early hours of October 23.

Mr Demeter's partner, Silvia Ferencova, and a man called Martin Garnett were also there.

He said a man knocked on the door asking for Marek and the pair started arguing.

Mr Demeter said Marek pushed the man who lost his balance, before the man pulled a knife and stabbed Marek.

"He has stabbed him like a pig," he said, speaking through a Slovakian interpreter.

Afterwards the man said his name was 'Stano' and that Mr Demeter could call the police.

Mr Demeter said the man was coming towards him with the knife so he threw a small trampoline at him.

He said his cousin collapsed in the corridor and Sylvia was in shock calling out “help, help” with their child in her arms.

He said he was in shock and sat outside a branch of Asda and cried. Later he walked in a wood near a cemetery and said he fell asleep and only went back to his mother-in-law's at around 10pm.

On trial is Stanislav Misko, 47, who denies the murder of Mr Benak.

The prosecution claims after an earlier argument with Mr Benak, Misko returned to his then address in Horton Grange Road and armed himself with a knife before going back and stabbing Mr Benak.

The court has heard the single knife wound penetrated the abdominal cavity damaging the bowel and stomach and cutting into the aorta and a vein causing blood loss from which he died.

Under cross-examination by Rupert Bowers QC defending Misko, Mr Demeter denied he was not telling the truth about who had been at his home that night.

Mr Bowers suggested two other men were present, Misko and another man with blond or white hair wearing a baseball cap and that it was that other man who had an argument with Mr Benak which "came to blows."

“No,” replied Mr Demeter.

Mr Bowers suggested after that both Misko and that man wearing the cap had left and it was the man in the cap who returned and stabbed his cousin.

Mr Demeter said that was not right, the first time he had seen the man who did the stabbing that night was when he knocked on the door.

Mr Bowers said it was not the defendant who did the stabbing “you’re just blaming him.”

Mr Demeter denied that was the case. “This is 100 per cent he has killed him.”

“For whatever reason you are protecting the person who actually did it," said Mr Bowers.

Mr Demeter replied: "There was no-one else inside the house I have seen he has killed him."

The trial continues.