Reyaad Khan: How model pupil in Wales became Islamic State poster child in Syria
Reyaad Khan was a polite and ambitious student before he travelled to Syria to join Islamic State, where he was killed by a British drone strike
Three years ago, two brothers from the same area, Riverside, were jailed for plotting to bomb the London Stock Exchange as part of a campaign of al-Qaeda-inspired attacks across the capital in the run-up to Christmas.
An ethnically mixed district described by one resident as a "mini United Nations", Riverside differs from much of the Welsh capital only in that some front doors are inscribed with Arabic inscriptions, and Halal butchers abound.
Khan, 21, who community members said had been polite and ambitious as a schoolboy, secretly packed his bags in 2013 and slipped out of the two-storey terraced family home where he had lived all of his life.
He and two others from neighbouring Butetown, Aseel Muthana and his older brother Nasser, joined Islamic State and became poster boys for its recruitment drive in the West.
Mohammed, 17, who used to play soccer with Khan and was friends with Aseel Muthana, said the young runaways had unnerved the Muslim community well before the government said Khan had been planning attacks
"People are more cautious about who they talk to," he said.