The woman killed in Friday's London Bridge attack has been named by police as Saskia Jones.
The 23-year-old Cambridge University graduate, from Stratford-upon-Avon, was fatally stabbed alongside another ex-student, Jack Merritt.
The boss of the venue where the attack began which killed the pair said "the building turned into a nightmare".
Toby Williamson, of Fishmongers' Hall, said staff who fought attacker Usman Khan believed he was wearing a bomb.
Two men took chairs, fire extinguishers and narwhal tusks, which were hanging on the wall, to fend off Khan, driving him out of the building.
Khan, 28, a convicted terrorist who was released from prison in December 2018, was later shot dead by police on London Bridge.
The families of Mr Merritt and Ms Jones have both paid tribute to their loved ones.
In a statement, Mr Merritt's family described him as a "talented boy" who "died doing what he loved".
"Jack lived his principles; he believed in redemption and rehabilitation, not revenge, and he always took the side of the underdog.
"Jack was an intelligent, thoughtful and empathetic person.
"We know Jack would not want this terrible, isolated incident to be used as a pretext by the government for introducing even more draconian sentences on prisoners, or for detaining people in prison for longer than necessary," the statement read.
Ms Jones' family said their daughter, from Stratford-upon-Avon in Warwickshire, had a "great passion" for supporting victims of criminal justice.
"Saskia was a funny, kind, positive influence at the centre of many people's lives," the family statement read.
"She had a wonderful sense of mischievous fun and was generous to the point of always wanting to see the best in all people.
"She was intent on living life to the full and had a wonderful thirst for knowledge, enabling her to be the best she could be.
"This is an extremely painful time for the family. Saskia will leave a huge void in our lives and we would request that our privacy is fully respected."
Cambridge University's vice-chancellor said he was "devastated to learn that among the victims were staff and alumni".
Professor Stephen J Toope said the victims were taking part in an event "to mark five years of the university's Learning Together programme" - which focuses on prisoner rehabilitation.
He added: "What should have been a joyous opportunity to celebrate the achievements of this unique and socially transformative programme, hosted by our Institute of Criminology, was instead disrupted by an unspeakable criminal act.
"Among the three people injured, whose identities have not been publicly released, is a member of university staff.
"Our university condemns this abhorrent and senseless act of terror."