Hitmen for the Kinahan cartel are being paid €2,000 per week on a 'retainer' and up to €10,000 per hit, sources have told the Herald.
Gareth Hutch (35) became the latest victim of the Kinahan gang yesterday when he was gunned down outside the Avondale House flats complex in Dublin's north inner city.
He was shot a number of times as he was getting into his car at approximately 10am - and footage of the horrific incident has since emerged.
A nephew of Gerry 'The Monk' Hutch, he is believed to be the seventh victim of a bloody dispute between the Kinahan and Hutch families that has spiralled out of control.
The gunmen initially tried to escape in a black BMW 5 series car but failed on two occasions to start it and had to flee the area on foot, leaving the vehicle behind.
The two men, one wearing a grey hoodie and the other a red tracksuit top, then fled in a second car in the direction of Sean McDermott Street.
The car the killers eventually used to escape, a Skoda Octavia, was later found by gardai burned out at Dubber Lane in Finglas.
Senior sources revealed that a known associate of the Kinahan gang was spotted in this same vehicle last week.
A source added: "These hitmen are reportedly paid €2,000 per week and €10,000 per hit".
One man has been arrested under Section 50 of the Criminal Justice Act after handing himself in to gardai at Mountjoy station.
He can be held for up to seven days.
Assassins working for the Kinahan mob are believed to be responsible for the murders of Gary Hutch, Eddie Hutch Snr, Noel 'Kingsize' Duggan, Martin O'Rourke, Michael Barr and most recently Gareth Hutch.
Meanwhile, a hunt is continuing for a senior associate of the Hutch mob after gardaí received reports that he was "armed and seeking revenge" for yesterday's murder.
Gareth Hutch was charged in relation to a cash-in-transit robbery in Lucan in 2009 but disappeared before the trial and was later extradited from the Netherlands.
The Hutch family and their associates have been repeatedly targeted by underworld rivals since the audacious AK47 gun attack on a boxing weigh-in at the Regency Hotel in north Dublin in February.
David Byrne, from the Crumlin area of Dublin and an associate of the Kinahan family, was killed in that incident.
His murder was said to have been in retaliation for the fatal shooting of Gary Hutch in September last year on the Costa del Sol after he fell foul of the Kinahan outfit and their operations in Spain.
Six of the seven men shot dead so far in the gangland fall-out were murdered over the past four months.
One of the victims was innocent father-of-three Martin O'Rourke, who was killed in crossfire outside Noctor's bar on Sheriff Street in Dublin in a case of mistaken identity.
Justice Minister Frances Fitzgerald has rejected suggestions that Garda operations had been scaled back in the midst of the gangland killings.