Scots who knew murdered Margaret Fleming are being asked to contact investigators probing failures in the care system surrounding the tragedy.
Margaret was reported missing in October 2016, 17 years after vanishing as a 19-year-old in 1999, and has never been seen since.
Her disappearance only came to light when one of her supposed carers, 61-year-old Avril Jones, applied for Personal Independence Payments on her behalf.
Jones and Margaret's other registered carer, 79-year-old Edward Cairney, of Inverkip, Renfrewshire, were arrested over her murder in 2017.
The pair, who pocketed more than £182,000 in benefits meant for her, were convicted of her murder in July 2019 and jailed for life.
Margaret Fleming: The Significant Case Review is urging anyone who knew the teen to come forward.
The online portal, accessed via Inverclyde Council's website, aims to 'honouring Margaret’s life and memory' and ensure 'the lives of people like Margaret are respected and valued today and in the future'.
Investigators stress this is 'not about revisiting the trial' which shocked the nation.
The statement read: Margaret Fleming was one of our own, a citizen of Inverclyde for all of her life.
"But in July 2019 two individuals were found guilty of her murder following a lengthy trial.
"In response, the independent Adult Protection Committee in Inverclyde, chaired by Alex Davidson, commissioned an ongoing Significant Case Review.
"Its purpose is to understand the full circumstances of Margaret’s death, to examine and assess the role of all relevant services, establish and identify areas for improvement and lessons to be shared.
"This remit follows the National Framework for Adult Protection Committees for conducting a Significant Case Review which is Scottish Government guidance produced in 2019.
"This work is being led by an Independent Reviewer, Professor Jean MacLellan, OBE."
It continued: "Given that Margaret died over twenty years ago, getting a detailed and accurate picture of her life and circumstances will need tenacity and sensitivity.
"Professor MacLellan appreciates that those of you who have lived in Inverclyde for a long time may have knowledge of Margaret that you may be willing to share. In doing so, it is important to recognise that this is about honouring Margaret’s life and memory.
"It is not about revisiting the trial.
"It is ultimately about ensuring that the lives of people like Margaret are respected and valued today and in the future.
"So this website is set up for us all to use to learn about and contribute to the Review and its outcomes.
"The Contact Us section which follows is your opportunity to take part.
"The website will continue after the Review is completed, as part of Margaret’s legacy, as a point of contact and as a place to learn about initiatives that are taking place across Inverclyde and beyond."
In March 2021 we told how a probe into how the social work department handled her case had restarted - after stalling because of coronavirus.
Inverclyde Health and Social Care Partnership (IHSCP) confirmed in January 2020 that Professor Jean MacLellan, the director of Autism Network Scotland, was leading a significant case review into possible failings in the case.
The first meeting in the probe into Miss Fleming's case took place in the February.
But in April it was announced the inquiry had been put on hold, with Inverclyde Council's policy and resources executive committee saying the review had been suspended because it was "unable to undertake effective investigation because of the COVID-19 emergency."
The council confirmed that the probe was back underway in March 2021.
Announcing the review in 2020, an IHSCP spokeswoman said: "This will be a full, independent inquiry which will involve all the agencies which were involved with Margaret during her life.
"A key area for the significant case review team will be to uncover any lessons that are to be learnt from the extensive cover-up carried out by Edward Cairney and Avril Jones to hide their appalling treatment of Margaret while she was in their care, and the murder that they subsequently committed.
"We have always been very clear that there will be a full independent inquiry into the circumstances surrounding Margaret Fleming's tragic death.
"However, the legal process had to run its course first."
Professor MacLellan has been a social work inspector and a senior civil servant in the Scottish government, where she led policy in areas including adult protection.
Jurors ruled criminal couple Cairney and Jones murdered Miss Fleming sometime between December 1999 and January 2000.
The authorities were alerted to Miss Fleming's disappearance in 2016 when Jones applied for PIP, writing that Miss Fleming needed constant care, self-harmed, and ate from a dog bowl.
The claims prompted social services and police to visit their home, and started an investigation which led to them being arrested, convicted and jailed for life, with a minimum sentence of 14 years.
Jones and Cairney have refused to reveal what they did with Miss Fleming's body, which has never been found.
Passing sentence, judge Lord Matthews told the couple: "Only you two know the truth. Only you know where her remains are."
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