A British woman kidnapped by Somali pirates believes the man convicted in connection with the case is innocent.
Jude Tebbutt and her husband David were attacked while on holiday in Kenya in 2011 – he was killed and she was held hostage in Somalia for six months.
Kenyan Ali Babitu Kololo was convicted but Mrs Tebbutt has told the BBC she now believes he was made a scapegoat.
Mrs Tebbutt said she did not believe Kololo had been given a “fair trial”.
The BBC has also learned that a former Metropolitan Police officer is under investigation for his role in the case – and that investigation is examining whether he may have committed a crime.
In 2012, local man Kololo was convicted of robbery with violence in a Kenyan court and sentenced to death – later commuted to life imprisonment. Authorities in Kenya are not looking for any other suspects.
The head of the Met’s investigation team – Det Supt Neil Hibberd – was the prosecution’s key witness.