A BBC probe reveals children as young as four taking knives into schools across England and Wales

Rebekah Campbell, 32, begged for life after a frenzied knife attack

Man, 30s, found fatally stabbed inside Leicester home; six men arrested as police investigate

Taxi driver admits deep regret after fleeing Southport attack that left three children dead

E-bike riders killed in deadly chase after two men wrongly suspected them of burglary