At 3pm on 12 September 2005, Ann Oakes-Odger's life changed forever. Her son Westley, just weeks after his 27th birthday, was queuing at an ATM in a Colchester shopping centre when two brothers, in an unprovoked attack, fatally stabbed him in the neck. The men, both in their 30s, had carried knives since their teens. A few months previously, they had threatened to kill a police officer. "Knife crime often slips off the...