A 20-year-old man was arrested on Wednesday for his suspected involvement of the fatal shooting of 24-year-old Sabrina Moss in Kilburn.
Mother-of-one Sabrina was celebrating her 24th birthday when she was shot outside a Kilburn restaurant on 24 August. Police believe she was not the intended target of a feud between gang rivals.
The suspect has been taken into custody at a north London police station on suspicion of assisting an offender.
Martell Rico Warren, 22, and Hassan Hussain, 28, will both stand trial next year charged with the murder of Sabrina Moss and attempted murder of her friend Sabrina Gachette.
They will appear at the Old Bailey on 10 January 2014.