A senior dissident republican from Co Tyrone has been shot dead by a hitman in a Dublin pub.
Just before 9pm on Monday night Michael Barr (34) was shot at the Sunset House pub where he worked.
About two hours later another man, aged in his 30s, was gunned down in a separate gangland-style killing in the Kilcronan area of Clondalkin in the west of the city.
There was immediate speculation that the shooting was the latest in a bloody feud involving associates of the Kinahan and Hitch families.
The two sides have been embroiled in a bitter row which has claimed the lives of several people in gangland style gun murders since late last year.
He died at the scene after he was shot at least three times, including one to the head.
Shortly afterwards a car was found burnt-out on Walsh Road in Dumcondra.
Barr - who was due before the Irish courts this week - has been linked to the Regency Hotel attack on February 5, which claimed the life of David Byrne.
Locals had been watching a football match when the gunman burst through the doors.
Dublin councillor Nial Ring said: "Instantly, people were in shock. There was a special needs chap in the place having a pint and he's in a terrible state. The shock of it."
Barr, who was in his mid 30s, was living in nearby Ballybough and was due to be sentenced on Thursday at the Special Criminal Court for handling stolen electrical equipment.
Earlier this month he pleaded guilty to the offence at Finnstown House Hotel, Newcastle Road, Lucan, Co Dublin on July 18, 2014.
Two months earlier at the same hotel a bomb was found in the boot of a car.
Barr was not facing any charges in relation to that.
He lived in Poppintree in the Ballymun area and also in Finglas before moving to the north inner city since taking over the pub some time in the last year.
In November 2014, when charged with the offence, Barr was also charged with IRA membership but the charge was later dropped.
The latest shooting is about a mile from where Martin O'Rourke, an innocent father and former drug user, was shot dead just over a week ago.
He was caught in the crossfire on Sheriff Street as another murder bid linked to the feud was launched.
That in turn was a mile or so from where taxi driver Eddie Hutch, brother of Gerry "The Monk" Hutch, was shot dead at his home off North Strand in February.
The Hutch-Kinahan feud spiralled into a killing spree when Gary Hutch was shot dead in an apartment complex near Marbella on the Costa del Sol last September.
His killing is believed to have been avenged in the Regency Hotel attack, an audacious shooting spree with assault rifles in early February which claimed the life of David Byrne, an associate of the Kinahan family.
Within days, Eddie Hutch was dead, and at the end of last month Noel Duggan, an old friend of suspected armed robber Gerry "The Monk" Hutch, was shot dead at his home in Ratoath.