The boy was arrested in Edinburgh on Wednesday by Police Scotland.
He will face questioning at a London police station.
A murder investigation was launched on 30 September after 19-year-old Kane died after suffering fatal stab wounds in Tottenham High Road near to Holcombe Market.
A post-mortem examination gave a cause of death of stab wound to the chest.
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Any witnesses or anyone with information are asked to call 101, quoting reference 5327/30Sep. To remain anonymous call Crimestoppers on 0800 555 111.
