(BBC) The Manchester Arena bomber encouraged a teenager to study chemistry to learn how to build a bomb, a court has heard.
Hashem Abedi is on trial accused of helping his brother Salman plot the attack that killed 22 people in 2017.
In a tape played to the Old Bailey, the witness said Salman had “talked about martyring” before making the comment.
The witness said he laughed it off, adding: “I would not associate their family to be that type.”
During the police interview, the then-16-year-old described the conversation with Salman in a car driven by Hashem Abedi.
