The three Dundon brothers convicted of murder are costing taxpayers €300,000 a year.
Figures from the Irish Prison Service revealed it costs €94,575 to keep each inmate locked up in the maximum security Portlaoise Prison.
Lowlife Limerick brother Wayne, John and Dessie Dundon are all serving life in the prison so are costing the taxpayer €283,725 every year.
By the time they finish their sentences they will have cost the taxpayer millions.
The trio are housed on the A5 unit of the prison.
Wayne (36) was convicted of the murder of innocent businessman Roy Collins (35) in July. The tubby thug organised the murder from his prison cell.
John (32) is serving life for the murder of innocent rugby player Shane Geoghegan (28) who was shot dead in a case of mistaken identity in November 2008.
Dessie (30) is serving life for the 2002 murder of rival criminal Kieran Keane.
