Cllr Nickie Aiken, Westminster City Council’s portfolio holder for community protection, who is meeting the Metropolitan Commissioner Sir Bernard Hogan-Howe this afternoon when he visits a Westminster Council run anti-gang programme, said:
"Our thoughts are with the family of this teenager and we will offer whatever help we can.
“Westminster City Council is committed to keeping the streets safe – including tackling gang culture - and we will work over the coming days and weeks to reassure the community of that."
More top news
Turning cloudy and windy but feeling mild at the weekend.
The Ukip leader also says his children his hid in a graveyard and were brought back by police.
Here's a borough-by-borough breakdown of the official figures.