Convicted sex offender Peter Tobin has been found guilty of raping and murdering Polish student Angelika Kluk.
Peter Tobin murdered the student in September 2006
The 60-year-old church handyman attacked Ms Kluk last September at St Patrick's Church, Anderston, Glasgow.
The High Court in Edinburgh heard how Tobin concealed the 23-year-old's body in the church and then absconded to London, sparking a nationwide search.
Judge Lord Menzies said that Tobin should serve a minimum of 21 years. He described him as "an evil man".
As Tobin was led from the court, he attacked and threw a press photographer to the ground before police intervened to assist Reliance prison officers.
Lord Menzies told the killer: "In the course of my time in the law I have seen many bad men and I have heard evidence about many terrible crimes which have been committed but I have heard no case more tragic, more terrible than this one.
"The advocate-depute describes what you did to Angelika Kluk as an atrocity and that word aptly describes what you did to this young woman.
"Any case of rape is serious. Any case of murder is serious. But what you did to Angelika Kluk was inhuman."
Ms Kluk, who had worked as a cleaner at the church to fund her studies, suffered severe head injuries and multiple stab wounds before her bound and gagged body was dumped beneath the floor of St Patrick's Roman Catholic Church.
The jury of eight women and seven men took just under four hours to convict loner Tobin, who had used the false name Patrick McLaughlin during his time as an odd job man at the church.
During the six-week trial, Tobin had denied raping and murdering the young woman and claimed that she had consented to having sex with him.
His defence counsel, Donald Findlay QC, pointed to Ms Kluk's relationship with former parish priest Father Gerry Nugent and married chauffeur Martin MacAskill.
Mr Findlay accused Fr Nugent and witness Matthew Spark-Egan of being involved in the young woman's death.
It has emerged that Fr Nugent faces contempt proceedings for contradictory and evasive answers he gave to Mr Findlay.
However, advocate depute Dorothy Bain, prosecuting, told jurors there was a "powerful, compelling and overwhelming case against Peter Tobin".
Angelika Kluk suffered horrendous injuries, the court heard
Miss Kluk's sister Aneta shouted 'thank you' to the jurors after they delivered their verdict.
In a statement released through Strathclyde Police, she said: "My father Wladyslaw and I are relieved that the man responsible for Angelika's death is now likely to spend the rest of his days behind bars.
"We would both like to thank all of the Scottish public for their support during this horrific time."
Det Supt David Swindle, who led the murder inquiry, praised Ms Kluk's family for their handling of the ordeal.
He said: "I sincerely hope that they can now start to rebuild their lives and feel that justice has been done."
Ms Kluk's body was hidden in church floor space (indicated)
Mr Swindle also paid tribute to police and forensics officers involved in the case.
He acknowledged that there were "many questions regarding Peter Tobin's background" and his previous convictions.
However, he said he could not comment on those now due to "legal restraints".
Tobin attacked two 14-year-old girls in Havant, Hampshire, in 1993. He raped one of the children and sexually assaulted the other and was released in 2004.
At his trial at Winchester Crown Court, the judge described it as "an appalling incident, I think the worst I have ever come across".