The family of murdered Bangor woman Lisa Dorrian have launched a campaign to keep the case in the public eye.
Lisa Dorrian's body has never been found
Shops in the County Down town will give out blue ribbons to people who support attempts to find her body.
Lisa, 25, disappeared after a party at a caravan site in nearby Ballyhalbert on 28 February.
Loyalist paramilitaries have been blamed for her killing. Her sister Joanne said the family wanted to keep the spotlight on the case.
"Our main aim is to keep the people who are involved and the people who know something about Lisa's disappearance... keep them seeing her face and showing how strong we are as a family," she said.
"We're not going to back down, we'll keep fighting for Lisa."
The police are looking at the possible involvement of members of the Loyalist Volunteer Force in the killing.
Her family have already offered a £10,000 reward for information leading to the recovery of her body.
It was not recovered despite extensive air, land and sea searches.
Earlier this month, they marked what would have been Lisa's 26th birthday by releasing 26 white balloons over the seafront in Bangor.
Four people have already been questioned by police, but all have been freed without charge.