Serial killer Peter Tobin has died after falling ill in prison where he was serving three life sentences.
He was taken from HMP Edinburgh to hospital, thought to be the Royal Infirmary of Edinburgh, on Wednesday and subsequently died, sources said.
He was serving a life sentence for raping and murdering Polish student Angelika Kluk, 23, and hiding her body under the floor of a Glasgow church in 2006.
The killer, who was in his mid-70s, was also serving life terms for the murders of 15-year-old schoolgirl Vicky Hamilton, of Redding, near Falkirk, in 1991, and 18-year-old Dinah McNicol the same year.
Their bodies were found 17 years later, buried in the garden of his former home in Margate, Kent.
Dinah went missing while hitch-hiking home from a music festival in Liphook, Hampshire. Vicky disappeared from a bus stop in Bathgate, West Lothian, while Angelika was working as a cleaner at a church in Anderston, Glasgow, when she vanished.
The murderer, rapist and paedophile was said to have been in “total denial” about his crimes and never admitted his guilt for the killings he carried out.
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Over the years, police have looked at hundreds of other unsolved murders to see if they could also be linked to Tobin.
That operation, codenamed Anagram, began in 2006 and was wound down in 2011.
In 2010, two addresses in Sussex – Marine Parade in Brighton and Station Road in Portslade – both the Scottish murderer’s former homes, became the subject of police searches for more than a week.
In 2015, Tobin was taken to hospital after being attacked in prison.