Michael Adebolajo was tortured in Kenya and his family informed the British government who would not help, his brother-in-law has told ITV News.
It means the authorities here have known for three years that Adebolajo had been detained and deported by the Kenyans, who believed he was trying to get to Somalia to train with militants, raising questions about their assessment of him.
Hear the brother-in-law's claims to ITV News within Lucy Manning's report:
Adebolajo's brother-in-law claims this Kenyan incident radically changed him.
His brother-in-law, who totally condemns the Woolwich attack, claims MI5 later approached Adebolajo to work for them.