Police have named the teenager shot and killed in Clapton as Joseph Burke-Monerville.
19-year-old Joseph was from Islington. A post mortem is expected to take place tomorrow in Popular, east London.
Police continue to appeal for witnesses and information: Any witnesses or anyone with information should call police on 020 8733 4211. To remain anonymous call Crimestoppers on 0800 555 111.
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"Africa is very important for the United States."
The incident happened at around 8pm local time on Thursday evening.
The Foreign Secretary said "good connections" were important, and suggested the Channel Tunnel might simply be "a first step."