The parents of murdered architect Joanna Yeates today made a direct appeal to anyone who may be shielding her killer to come forward.
David and Teresa Yeates begged anyone who may have suspicions – or even know who the murderer is – to contact police and end their torment.
They were speaking as detectives today begin filming a reconstruction of Jo’s last movements for the BBC’s Crimewatch programme.
In a joint statement, David, 63, and Teresa, 58, said: ”If you do know something and you do not come forward you are consciously hampering the apprehension of Jo’s killer(s) and the perpetrator(s) is still free.
”You will also be prolonging the torment of Jo’s family and friends.
”Do you know anyone that hasn’t been shocked or disturbed? Has anyone you know had an unusual or inexplicable reaction?
”Was their behaviour unusual on the week-end of 17/18/19th December, or throughout the past three weeks?
”Do you know someone who has been behaving out of character either by actions, or what is said – or not said? Do you know someone who has inexplicably become reclusive, quiet or vocal?
”As mentioned above, scenarios abound regarding Jo. Has someone tried to impress on you a scenario which has been inconsistent with the information released by the police at that time – and refused to change it?
”It would appear that the nation is shocked and appalled by what has happened to our daughter. Do you know someone who has been, somehow, justifying her being killed?
”Please help us identify the killer. Jo was probably acquainted with her killer.
”We are sure the killer will be brought to justice. When this happens, please think how you will feel, if you knew the killer, and you had questions in your mind which you consciously refused to act on.”
Mr and Mrs Yeates made the appeal alongside Jo’s brother Chris, 28, and boyfriend Greg, 27.
The landscape architect was last seen alive after leaving The Ram pub on Park Street, Bristol, after drinks with colleagues at 8pm on December 17.
She then walked back to her rented flat in Canynge Road, Clifton, and popped into a Waitrose store, a Bargain Booze shop and a Tesco Express on her way.
At the Tesco branch she bought a ‘Finest’ mozzarella, tomato and basil pesto pizza which has never been found.
She was reported missing by boyfriend Greg two days later when he returned home from a weekend away.
Her snow-covered body was found three miles away at the side of Longwood Lane in Failand on Christmas Day. She was wearing just one sock.
Jo’s landlord Chris Jefferies, 65, a former teacher at Clifton College, was arrested on suspicion of murder on December 30 but released on police bail two days later.
Detectives are still desperately searching for her missing grey ski sock and pizza box.
Yesterday IT worker Mr Yeates and his wife, of Romsey, Hants., spoke of their ongoing agony and constant theorising over what may have happened to Jo.
They said: ”We would like to say that we feel we are part of the police investigation, just as much as the investigating officers.
”We spend much of our time – as I imagine most of the country does – thinking of scenarios which took Jo, alive in her flat, to being found dead by the side of a country lane.
”These scenarios change as events unfold, and new facts are made available. All our thoughts are passed back to the police.
”Although we invariably do not have all the facts known by the police, we do know Jo.
”We know what Jo would do, and how she would react in different situations. This, we believe, is our major contribution.
”Whatever we do or say, we do not want to frustrate or compromise the police investigation.”
They appealed for any ”armchair detectives” who may have clued for the police to come forward.
”For over three weeks there has been extensive media coverage of Jo’s disappearance and murder,” the statement said.
”The last few weeks have encompassed an extensive festive period. Many people will have probably been socialising and spending extra time with family and friends.
”Nearly the whole country has been moved by the tragic events surrounding Jo’s murder.
”Many of us are ‘armchair detectives’, but if this activity triggers anything please come forward.”
Filming begins today on the Crimewatch reconstruction of Jo’s final journey from The Ram pub to her flat. It is due to be broadcast on January 26 at 9pm.