Mr Kinsella said: "How many families like ours will have to stand on the street outside the Old Bailey to get justice?
"Knife crime is now sadly embedded in the heart of Great Britain, always running the lives of gangs and feral youths.
"Parents live in fear until their children are safely home. It could be a wrong word, a wrong look or the wrong postcode.
"In Ben's case, it was something which was nothing to do with him at all."