Mashal Khan, a 25-year-old mass communications student, was mobbed and killed on campus after being falsely accused of blasphemy.
26 suspects were acquitted over his death which sparked outcry across the religiously conservative country.
The 57 suspects on trial in the northwestern Khyber Pakhtunkhwa province included teachers and officials of Abdul Wali Khan University in Mardan.
Mr Khan, a Muslim, was reportedly known for being keen to debate social, political and religious issues.
He described himself as a humanist and had posters of Che Guevara and Karl Marx on his wall, along with messages celebrating free speech.
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Rumours spread in April last year that he had posted blasphemous material online, a crime punishable by death in Pakistan.
Hundreds of students and some university staff members then marched through the campus looking for him.
They are said to have broken into his room and dragged him out.
Mobile phone footage showed him being beaten, stamped on and shot.
The crowd continued to attack his body after his death.
Mahal Khan’s father Iqbal has said justice has not been done in the case.
He told BBC Urdu: “I don’t understand how several people were acquitted despite very clear videos and other evidence.”
Mr Khan’s mother Rukshana Iqbal told The Telegraph that her other children have quit education because she fears for their lives.
Mrs Iqbal said: “I can’t trust any university to send to for education.
“My daughters were top of their classes, but their education has been disrupted.”
Blasphemy is an extremely sensitive issue in Pakistan, where insulting Islam’s prophet is punishable by death.
Pakistan’s then prime minister Nawaz Sharif held off on commenting on Mr Khan’s death until he had been cleared of blasphemy.
Each suspect accused over his death pleaded not guilty at the trial that was held in a high security prison, after threats were made against defence lawyers and government prosecutors.
Imran Ali, the prime suspect in the case, confessed to shooting Mr Khan three times.
He was fined £973 and handed a death sentence today.
Five other suspects, named Bilal Bakhsh, Fazal Razaq, Mujeebullah, Ashfaq Khan and Mudassir Bashir were handed life sentences of 25 years each.
Mr Ali, in a court statement, alleged the university administration was partly responsible in the case.
Parents of the arrested suspects staged a protest because they were to allowed in the courtroom.