Two people have been arrested in connection with the suspected murder of a man in North Dublin on Sunday night.
Finglas man Gary O’Brien was found dead in a basement flat of a property in the capital’s North Circular Road.
Officers originally suspected that the gunshot wound he suffered to his head had been self-inflicted.
But gardaí have so far been unable to locate the gun.
Now, Independent.ie has learned that two people, a man and a woman, have been arrested and are being held on suspicion of Mr O'Brien's murder.
The pair were detained after searches late last night.
One is being questioned in Store Street Station while the second is being held in the Bridewell.
They can be held for up to 24 hours.
Mr O’Brien was known to gardaí for minor offences but was not considered a criminal.
Sources say gardaí also found evidence of drug taking in the property where the fatal shooting happened.
A woman who was seen leaving the property on Sunday night had “a lot of blood” on one side of her body and was heard mumbling “he is dead”, according to eye-witnesses.
A post-mortem on Mr O’Brien’s remains took place at Dublin City Mortuary yesterday.
A Garda spokesman has confirmed that a man in his mid 30s and a woman in her late 30s were arrested late last night and early this morning.
They are being held under section 50 of the criminal justice act. They can be questioned for up to seven days.