A North Korean prison camp escapee, who is now a high-profile human rights campaigner, has apologised for inaccuracies in his story.
Shin Dong-hyuk, 32, was the subject of a best-selling book after he fled North Korea in 2005.
http://www.bbc.com/news/uk-31688700
Jihadi John was a loner, IS defector says
1 March 2015 Last updated at 22:41 GMT
The BBC has spoken exclusively to a former member of Islamic State who met Mohammed Emwazi - also known as "Jihadi John" - during his early days in Syria.
The man says that Emwazi was a loner, who would not even mix with other British jihadis.
Paul Wood reports.
http://www.bbc.com/news/uk-31669623
'Jihadi John' had anger management therapy, says teacher
27 February 2015 Last updated at 23:19 GMT
The BBC has learned that Mohammed Emwazi, who has been identified as the Islamic State extremist 'Jihadi John', had anger management therapy at his secondary school in north-west London.
A teacher who knew him at the Quintin Kynaston academy, and asked for her identity to be protected, told the BBC's Newsnight that MI5 has since interviewed staff there.
She said she remembered a "lovely boy" who "had a real willingness to succeed", despite early behavioural problems.
Richard Watson reports.