Father guilty of 'honour killing'
Chomir Ali, 44, his sons Mohammed Mujibar Rahman, 19, and Mamnoor Rahman, 16, will now be sentenced to life imprisonment for the murder of Arash Ghorbani-Zarin, a 19-year-old university student, on November 20 last year.
Mr Ghorbani-Zarin, an Iranian Muslim studying engineering at Oxford Brookes University, had been stabbed 46 times when he was found dead in his car in Rosehill, Oxford.
A jury at Oxford Crown Court took four-and-a-half days to reach a verdict. Mr Justice Gross adjourned sentencing for reports on Mamnoor.
Mr Ghorbani-Zarin had been dating Ali's daughter Manna Begum, who was promised to someone else by her father, since 2003. She fell pregnant soon after.
Mr Justice Gross said the Western-style relationship caused a "battle of wills" in Miss Begum's family, as she refused to conform.
In a statement, the Ghorbani-Zarin family said: "This verdict gives us some comfort that justice has been done but it does not bring him back."