The 16-year-old will appear in custody at Willesden Youth Court on Wednesday, 18 November charged with murder and possession of an offensive weapon.
An investigation was launched by the Met’s Specialist Crime Command after police were called to reports of a stabbing in Northwick Park at 3.50pm on Thursday, 12 November.
Jamalie Maleek Deason Matthew, aged 17, was found suffering from stab injuries.
Despite the best efforts of emergency services, he was pronounced dead at 4.31pm.
