Academic's widow asks inquest why his killer was armed and free

The widow of an academic stabbed to death by a stranger outside their north London home has demanded to know why her husband’s attacker, who had a mental illness, was “armed and at liberty” after previous charges against him were dropped.Jeroen Ensink, 41, a water engineer and senior lecturer at the London School of Hygiene and Tropical Medicine, was “stabbed by somebody he didn’t know when he was posting some cards announcing the arrival of his first baby”, t