Detectives investigating the murder of Rikki Neave will appeal for help to catch his killer on Crimewatch tonight (Monday November 16).
A reconstruction of the six-year-old’s last-known movements will be shown in the programme which will be aired on BBC1 at 9pm.
It will include an interview with one of Rikki’s siblings, who has chosen not to be identified, and his mother, Ruth.
Rikki was last seen leaving for school at around 8.30am on Monday, November 28, 1994, from his home in Redmile Walk, Welland, Peterborough.
He is believed to have been wearing grey trousers, a white shirt, black shoes and a blue coat.
Rikki’s body was found the following day in a wooded area off Eye Road, close to Willoughby Court - five minutes’ walk from his house in the Welland Estate.
A post mortem examination concluded that Rikki had died as a result of a compression of the neck – strangulation.
The following day (Wednesday November 30) officers searching Willoughby Court found Rikki’s clothing – grey trousers, a white shirt, black shoes and a blue coat – in a wheelie bin.
Detective Chief Inspector Richard Wall, from the Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Unit, said: “Over the past few months since the relaunch of this murder investigation we have made significant progress in understanding Rikki’s last movements.
“We are also revisiting original forensic work and are excited with the progress due to the advances in forensics over the past 21 years.
“We still strongly believe the key to finding whoever killed Rikki lies with the public and we hope that this national appeal through Crimewatch will reach someone who hasn’t yet come forward but who has information about Rikki’s murder.
“As well as people living on the estate at the time of Rikki’s murder we are also keen to hear from anyone who worked on the estate and had regular contact with people living there, such as social workers, housing officers and GPs.
“Are you in possession of any information as to who committed this murder, do you have any suspicions over those who you had interactions with on the estate or elsewhere in 1994.”
Officers from the Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Unit will be on the Welland Estate on Monday (November 16) and Tuesday (November 17) handing out appeal leaflets and talking to local residents.