Almost 1,000 children and teenagers were killed by knives between 1977 and 2015 - around a third of them in London

57

deaths in

West

Yorkshire

50

Greater

Manchester

67

West Midlands

307

young people were killed in London, the majority of which in the past decade were black male children and teenagers

57

deaths in West

Yorkshire

50

Greater

Manchester

67

West Midlands

307

young people were killed in London, the majority of which in the past decade were black male children and teenagers