What happened to Sian Blake, when was the EastEnders actress murdered and where’s killer Arthur Simpson-Kent now?
Simpson-Kent admitted to killing Sian and their boys and is currently serving a life sentence
FORMER Eastenders actress Sian Blake and her two sons were murdered in 2015.
A new Channel 5 documentary has been released exploring the case - here is everything we know.
What happened to Sian Blake?
Sian, 43, was a successful actress and voiceover artist who starred in 56 episodes of EastEnders as the singer Frankie Pierre in 1996 and 1997 and also appeared in The Bill, Casualty and Doctors.
During the trial it was heard how she first met Simpson-Kent through work but their initial relationship ended quickly and he went to live in France until 2005.
On his return to the UK they moved in together in Walthamstow and had two children together, Zachary, eight, and four-year-old Amon.
Sian was reported missing on December 16 2015 when she was not seen again after visiting her mother and sister in Leyton, east London, to discuss moving in with them on December 13 2015.
On the day Sian was reported missing, police went round to the family home at 4pm and Simpson-Kent told officers that Sian had gone to see a friend in Cambridge.
Simpson-Kent then left the house in Sian's car that evening before police returned at 8pm to find the house locked up and in darkness.
He used a friend's card to book a £900 flight to Ghana.
In January the case became a murder investigation and on January 6 2016, Sian and her son's bodies were found buried in shallow graves in the family's back garden.
In the same month, police travelled to Ghana and arrested Simpson-Ken.
He was extradited to the UK and charged with the killings in February 2016.
When was the EastEnders actress murdered?
Sian was first reported missing by her family on December 16 but her body was not discovered by police until January.
Therefore the exact date she was killed is not known to this day.
Where is Arthur Simpson-Kent now?
Simpson-Kent pleaded guilty to three counts of murder in June 2016 and later lost a challenge against his "whole-life" sentence.
He failed to persuade Lord Chief Justice Lord Thomas and two other leading judges at the Court of Appeal in London that the term should be reduced.
Lord Thomas said: "In our judgement there was plain evidence before the judge in which he was plainly entitled to have regard.
"Not only the fact of premeditation in respect of the killing of the two children but also premeditation of the killing of Ms Blake, and also to have regard to the time scale in which this occurred.
"We have to look at all the evidence and decide whether this is the type of case where the seriousness of the offending was exceptionally high and we have no doubt that it was.
"First of all we have had regard to the vulnerability of each of those the appellant murdered - the mother diagnosed with a debilitating illness that can only have resulted in death, and the murder of two young and defenceless boys – his own children.
"The brutality of the killing, the fact the bodies were concealed, the admissions made and the attempts made to clear the scene.
"With the premeditation and those other facts it seems to us that there is no doubt that this is a case of exceptional seriousness.
"Was this a case where the element of pre-meditation required a whole-life order? We are entirely satisfied that the judge was entitled to reach that conclusion and on that basis we dismiss the application."
Simpson-Kent remains in prison.