Bedford street stabbing: Afsansa Kosser 'not having affair'
The brother of a woman killed in the street by her estranged husband has told a jury he does not believe she had an affair.
Afsana Kosser was repeatedly stabbed near her Bedford home by Sajid Mahmood in April last year.
Tariq Mahmood told Luton Crown Court: "I believe it is in his head, as justification for what he did."
Sajid Mahmood, 52, who is the witness's cousin, has admitted manslaughter but denies murder.
The jury has heard he had accused 35-year-old Ms Kosser of having a relationship with one of her colleagues at Bedford Job Centre.
On 11 April, the day after they had been to court over their children, Mr Mahmood waited in his car outside her house in Rosamond Road for her to walk to work.
When she did, the Northampton bus driver stabbed her 25 times.
Giving evidence, Tariq Mahmood said he asked his cousin for any proof of an affair and he did not have any.
He told the court he believed the colleague was just a good friend.
In January, his sister had been out with work friends, including the man in question, when her husband called him late at night and said she was not answering her phone, he said.
The following day, he was told Mr Mahmood had said three times that they were divorced, which is binding in Islamic law.
Two family meetings were called to discuss the situation, but Ms Kosser said she wanted time to reflect on things, the court heard.
Speaking about the hearing over child custody on 10 April, Tariq Mahmood said: "She was very happy and felt it had gone her way.
"I did not see her alive again."
The jury has heard Mr Mahmood, of Sandy Road, Bedford, called 999 after the attack and said "I have just killed my wife".
The prosecution alleges he planned what he was doing and was after revenge, while he claims he lost self-control.
The trial continues.