Gang leader Abdul Yassin-Noor, 20, was jailed for 15 years at the Old Bailey for attempted murder. Alex Ojerinola, Simba Chiuture and Neil Williamson, all 17, and Younatan Frezgi and Trevon Bert, both 15, were jailed for between five and eight years after being variously convicted of wounding with intent to cause grievous bodily harm and robbery.