Crimestoppers is offering a €10,000 reward for information on the murder of Latvian woman Baiba Saulite in north Dublin earlier this month.
A memorial service for the 28-year-old mother-of-two was held at St Colmcille's church in Swords last night.
She was shot dead at her home in nearby Holywell Square on Sunday, November 19.
Gardaí are due to distribute leaflets in the area this morning in the hope of gathering further information to move their investigation forward.
Crimestoppers, meanwhile, is urging anyone with information about the killing to contact its anonymous freephone hotline on 1800 25 00 25.