Christina, Sabrina's sister, reads a tribute on behalf of the nursery teacher's partner. She says he "is completely heartbroken" - and goes on to say "Sabrina was loved by everyone, but for me and my son it was beyond love and words."
Sabrina Moss was fatally shot in Kilburn on Saturday. She'd been celebrating her Birthday with a friend, who was also injured in the attack.
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Pictures of today's events unfolding following a major security incident at the Houses of Parliament.
At least two people have died after a knifeman brought terror to the heart of Westminster.
The Cobra committee brings together government ministers with senior officials of the emergency services and security agencies.