An Iranian immigrant has been found guilty of strangling an elderly widow to avoid being thrown off the allotment he was introduced to by an anti-torture charity.

Rahim Mohammadi killed 80-year-old Lea Adri-Soejoko with a lawnmower cable and hid her body at Colindale allotments in north London in February last year.

The allotment secretary was found dead in a locked mower shed after her family raised concerns that she had failed to turn up at a meeting.

Kurdish Mohammadi, 42, from Hackney, north London, was found guilty of her murder on Thursday following a retrial at the Old Bailey.

Prosecutor John Price QC had told jurors the Iranian had a reputation for having a "volatile" temper, which he displayed by shouting at the jury as he was led to the cells.

Mohammadi had been involved with the allotment since 2008 through Freedom from Torture, an organisation helping torture victims suffering from post-traumatic stress disorder.

But in a victim impact statement, Mrs Adri-Soejoko's family said there would be no closure for them, knowing she had suffered "indescribable torture" herself.