A second man has been arrested in connection with the murder of a man in the Phoenix Park on Friday.
The 20-year-old is being held at Finglas Garda station under the provisions of Section 4 of the Criminal Justice Act 1984.
A 27-year-old man arrested yesterday remains in custody.
Investigators believe the victim, who was beaten before being set alight, was homeless for intermittent periods.
A motive for his murder is yet to be established and it is understood results of a postmortem on his remains did not suggest any signs of serious or prolonged drug or alcohol abuse.
He is thought to have been aged in his 40s and an Irish national.
The horrific nature of his death yesterday drew comment from Archbishop Martin during his Mass for the first Sunday of advent at the church of St Andrew on Westland Row.
“In our own city how often do we read about knives being raised in violence and guns in vengeance and lives – young lives – being ruined?” he said.
A Garda car patrolling the Phoenix Park discovered the victim’s remains on Friday, having spotted a fire near the Wellington Monument.
His identity has been established, but has not been made public.The nature of his assault has attracted considerable public attention. He was believed to have been beaten severely before being set alight; his skull was fractured and a gas canister was recovered near his remains.
Such was the damage inflicted that gardaí could only make a positive identification through the use of dental records or DNA sampling.
Gardaí moved to reassure members of the homeless community that their assistance in the investigation would be dealt with in the strictest confidence.