Knife crime in Britain is a political hot topic due to a spate of recent killings of mainly young people in major cities . Recently convicted of murder of teenage actor who starred in new ` ` Harry Potter '' film . Karl Bishop , 24 , attacked Rob Knox with two knives in southeast London last May . Knife crime in London is political hot topic due to reports of recent murders .
Recently convicted of murder of teenage actor who starred in new ` ` Harry Potter '' film . Karl Bishop , 24 , attacked Rob Knox with two knives in southeast London last May . Knife crime in London is political hot topic due to reports of recent murders .