Gardaí are handing out thousands of leaflets in Dublin as part of their appeal for information about a dismembered body found in the city's Royal Canal over a week ago.
The leaflets, printed in four languages, detail rewards being offered for information leading to the man's identity, or to the location where he was killed.
The Crimestoppers service is offering a cash reward to anyone who can identify the man, who was repeatedly stabbed in the chest and abdomen.
Gardaí have been following up around 500 separate lines of inquiry.
They are still comparing the victim's fingerprints to thousands on various databases, and are watching hours of CCTV footage from the area around the canal at Ballybough, where parts of the man's body were found on 30 March.
Despite extensive searches along the canal, the man's head has not been found.
The victim was black, over 6ft tall and aged in his 20s or 30s. A white-coloured Ireland away soccer jersey was found with the body.
The Crimestoppers number is 1800 250025.