Gangland criminal Mark Buckley fears for his life in prison
The best pal of slain gang boss Eamon 'The Don' Dunne is under serious threat in prison less than a fortnight into a two-year sentence.
It is understood that there is a reward on offer to any inmate who causes serious harm to 32-year-old gangland bully Mark 'Bucko' Buckley.
Buckley is said to be in a complete state of "isolation and paranoia" in Wheatfield Prison after becoming a hate figure for other serious criminals.
"He shoved his weight around way too much when he was going around with Eamon Dunne, but things are very different now five years later," a jail source said.
"He got moved to Wheatfield from Mountjoy as things were so bad for him there that he was not even able to go into the exercise yard because he would have been attacked."
Sources said Buckley is in danger because he had been involved in a number of brutal fights on the outside.
These included one at a northside gym several years ago with a serious gangster who is a key player in the 'Mr Big' drugs organisation.
Of most concern to Buckley is the fact he is a "major enemy" of convicted killer Craig White (29), who is considered one of the most powerful and dangerous prisoners in the country.
In July 2009, White was convicted of the Crumlin/Drimnagh feud-related murder of Noel Roche, who was shot dead in the passenger seat of a car in Clontarf in November 2005 after attending a Phil Collins concert at the Point.
White has been feuding with Buckley since before he was locked up nearly six years ago and is now eager for "payback", according to sources.
Buckley has also fallen foul of key members of his former mob and is "despised" by associates of murder victim Paul Cullen (27), who was shot dead in a Cabra pub in March 2013.
It is believed Cullen was targeted by a local mob because he was demanding payment for his role in the gun murder of notorious hood John Daly (27) in October 2007.
Buckley was handed the two-year sentence for his involvement with three other criminals in the vicious assault on one of Cullen's best pals in the Cabra House pub where Cullen was shot dead five months earlier.
Dublin Circuit Court heard last month that the four men arrived at the pub in two cars driven by Buckley and his pal David Waldron.
They walked to the back bar where they attacked Cullen's friend, chased him out of the pub and beat him up after knocking him to the ground.