Ronan Kanda was killed in a case of mistaken identity by teenage boys who bought a set of swords and a machete on the internet. His family spoke to the BBC about their unwavering fight for justice.

Earlier the same day, one of the attackers had picked up a ninja sword set and a machete ... The victim's mother, Pooja Kanda, previously told the BBC: "He made me the happiest mother in the ...