A murder investigation is underway in East London, after a 16-year-old boy was stabbed to death in the street.
Ajmol Alom has been described by his headteacher as a "star pupil with a bright future ahead of him". A second teenager who was also attacked is being treated in hospital.
Police have described it as an unprovoked attack, as Ria Chatterjee reports:
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John Nolan, who was found with cigarettes and two lighters, suffered burns on 65% of his body after being alight for around six minutes.
Known as Pily she died in January, seven months after the disaster, having suffered a stroke.
The shake-up also aims to smash the "myth" that officers cannot pursue riders who are not wearing helmets.