Cambridgeshire Police has made a television appeal to help solve a murder.
The body of Una Crown, who was 86, was discovered at her bungalow in Wisbech earlier this year.
Last night's Crimewatch programme featured a reconstruction of her last known movements.
Detective Inspector David Grierson said: "We hope the Crimewatch appeal will help us get that vital piece of information to help bring whoever is responsible for Una Crown's murder to justice.
"She was a small lady who posed no threat to anyone - hopefully the reconstruction will show that and encourage anyone with information to call police."