Mr Merritt's father David wrote on Twitter: "My son, Jack, who was killed in this attack, would not wish his death to be used as the pretext for more draconian sentences or for detaining people unnecessarily".
Jones was a volunteer for the programme, which seeks to "bring together people in criminal justice and higher education institutions to study alongside each other in inclusive and transformative learning communities".
Her family said in a statement: "Saskia was a amusing, kind, positive influence at the centre of many people's lives".
The medical director for the NHS in London, Dr Vin Diwakar, said on Sunday that one of the three people injured in the attack had been allowed to return home while the other two remain in a stable condition in hospital.
Stephen J Toope, the University of Cambridge's vice-chancellor professor, said today: "I am devastated to learn that among the victims of the London Bridge attack were staff and alumni of the University of Cambridge, taking part in an event to mark five years of the Learning Together programme".
"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".
"R.I.P. Jack: you were a handsome spirit who always took the side of the underdog". We will be providing all the support we can to our colleagues, including counselling for staff and students who are affected by the event.
Saskia Jones, pictured right, was the second victim of the London Bridge terrorist attack to be named.
It comes as West Midlands Police said a 34-year-old man arrested in Stoke-on-Trent on suspicion of preparation of terrorist acts has been recalled to prison due to a suspected breach of his licence conditions. The venue was being used to celebrate the fifth anniversary of the founding of Learning Together, a prison rehabilitation programme developed by Cambridge's Institute of Criminology.
Mr Johnson has committed to introducing mandatory minimum sentences of 14 years for the most serious terrorist offences and he has said some offenders should never be released.
A convicted terrorist, who was released early from prison, has been arrested again and is facing new charges.
After attacking people at the conference, he was eventually subdued by members of the public on nearby London Bridge and was subsequently shot dead by police.
Khan, who was living in Stafford, north of Birmingham, had been given permission to travel into London by police and the probation service.
He was released automatically halfway through the sentence.
ISIS yesterday claimed responsibility for the London Bridge terror attack on Friday (29 November), in which two members of the public were killed and three were injured.
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