The British man that died in the Paris terror attacks has been named as Nick Alexander, the Foreign Office has confirmed.
Mr Alexander, from Colchester in Essex, was working as a merchandiser during a Eagles of Death Metal concert at the Bataclan venue where one of the attacks took place, killing 89.
The Foreign Office says there may be a "handful" of British deaths following the terror attacks that left at least 129 dead.
Speaking after chairing a meeting of the Government's Cobra emergency committee, David Cameron said: "We must be prepared for a number of British casualties and we are doing all we can to help those caught up in the attack".
Mr Alexander was "generous, funny and fiercely loyal" and "cherished by his friends around the world", his family said in a statement.
His girlfriend also paid tribute to "the love of her life".
Polina Buckley posted pictures of the pair on Twitter, writing: "You are and always will be the love of my life, Nick Alexander."
She added: "Sleep tight, my sweet prince."
Friend Helen Wilson described the moment Mr Alexander was shot in front of her in the attack on the Bataclan venue.
Miss Wilson, speaking from her hospital bed, said she tried to give him mouth-to-mouth resuscitation and held him in her arms as he struggled for his life.
Music agent Stephen Budd worked with Mr Alexander on a project in 2011. He said he was "warm, open, supportive, enthusiastic and passionate about music".
The singer Cat Stevens, also known as Yusuf Islam, sent "love & condolences" to Mr Alexander's family, in a message on Twitter.
Drummer Patrick Carney from US rock band The Black Keys told Rolling Stone magazine: "I spent a lot of time with Nick...he was a really organised, super-hard worker, really funny. I remember him always very content with being on tour...It was what seems to make him the happiest."
He added:"I remember he looked more like a rock star than anyone else on the tour, in the best possible sense."
Carney's Black Keys bandmate Dan Auerbach said: "He was always there, really nice guy, always with his mod haircut and his big smile."
Friends have set up a memorial fund for Mr Alexander.