A man has been convicted of murdering a Nepalese student and dismembering her body with a meat cleaver in Glasgow.
A jury at the High Court in Glasgow found Roshan Dantis, 30, guilty of killing 23-year-old Khusbu Shah at her home in Dennistoun on 1 June last year.
He was also convicted of attempting to defeat the ends of justice and extort cash and a TV from Mrs Shah's husband.
Indian-born Dantis was handed a mandatory life sentence and told he must serve at least 24 years in prison.
During the trial, the court heard how Dantis met Mrs Shah's husband, Nagendra, in 2008 when they started a business masters degree at Strathclyde University.
The jury was told that he became increasingly jealous of his friend's more affluent lifestyle and formed a plan to kill Mrs Shah and extort £120,000 from her husband.
On 1 June 2009, he attacked Mrs Shah, the mother of a four-year-old child, at her home in the city's Coventry Drive.
He strangled her before hacking her body with the meat cleaver he had bought from a Chinese supermarket.
Dantis then put her body in a holdall and dumped it in bushes just a short distance from the flat.
He put Mrs Shah's head and hands in bags, along with the cleaver and the top he had been wearing, before ditching them at a nearby railway embankment.
The court was told that following the murder, Dantis tried to extort cash and a TV from Mr Shah but his friend grew suspicious and contacted police.
When Mrs Shah's remains were eventually discovered, Dantis's DNA was detected on items such as the holdall that contained her body and the cleaver.
He denied any involvement throughout the trial and claimed to have been framed.
But a jury at the High Court in Glasgow did not believe him and convicted him unanimously of the murder.
Judge Lord Pentland jailed him for life and also recommended that he be deported at the end of the sentence.
"Khusbu Shah was a vibrant and loving young mother whose husband was one of your best friends," he said.
The cleaver used to kill Mrs Shah was found in undergrowth
"You strangled her and then cut off her head and hands. The exact motive for this crime may never be known. "But, whatever your motive, you planned this crime well in advance and put these plans into effect with chilling composure."
Lord Pentland added that Dantis murdered the young mother in her own home and "desecrated" her body by dumping the remains.
The Shahs married in their homeland of Nepal before arriving in Glasgow in 2008.
In a statement, Mrs Shah's husband said: "Khusbu was my beautiful wife, Nikhil's perfect mum and Mr and Mrs Jaiswal's lovely daughter.
"She was always cheerful, caring, friendly and helpful. She managed to fit everything in so well with her life: work, study and family. We miss everything about her and we always will.
"She was brutally killed by a ruthless evil man. My four-year-old son, Nikhil, has had to cremate his 23-year-old mum. I wish no other child to have to go through the same pain.
"Today Roshan Dantis, has been found guilty of murdering my beautiful wife in the most terrible and terrifying way. He deserves a life sentence for his heinous crime and our family is satisfied that he has been brought to justice."
Mr Shah also thanked police and prosecutors for "bringing Roshan Dantis to justice today for his truly evil and wicked action".
He added: "Finally to my wife, Khusbu, I love you and miss you very much."
Det Sup Michael Orr, of Strathclyde Police, described Dantis as "one of the most dangerous murderers Scotland has known".
"(This was) a truly shocking case that evidenced a level of preparation and clinical planning that is rarely if ever uncovered in a murder investigation," he said.
"Dantis has shown not a grain of remorse throughout the entire proceedings and has continually lied and changed his story to clearly implausible levels in an attempt to save himself from conviction."