The former senior Northern Ireland policeman is addressing a Belfast conference on child protection.
Security sources said it flared up as a result of an argument in a Belfast pub.
Mr McCartney was stabbed to death after a row in a Belfast bar on 30 January.
BBC: NEWS | UK | Northern Ireland | Party politics warning to sisters
The taoiseach has told a Belfast audience that the "true test of peace" is the absence of peace walls.
BBC: Enda Kenny says true test of peace is absence of peace walls
However, when cross-examined by a Belfast City Council lawyer, she accepted that in certain circumstances he could be aggressive.
Meanwhile, the headmistress of a Belfast school damaged in an arson attack has blamed anti-social elements for starting the fire.
BBC: NEWS | UK | Northern Ireland | Showroom destroyed in blaze
It's understood the party is to propose a Belfast city centre site for a sports stadium to help boost the economy.
"My best years are not behind me, my best career achievements are in front of me, " stated Harrison in response to a Belfast reporter.
The chairman of a public inquiry into the deaths of children in a Belfast hospital has launched a scathing attack after it had to be adjourned.
Nurses involved in the care of a nine-year-old girl who died in a Belfast hospital in 2001 have been giving evidence to the inquiry into her death.
In an interview in a Belfast newspaper, the Irish News, printed on the day she died, Mrs Nelson said once again that the police had been threatening her life.
After his funeral those who came to mourn were able to enjoy a Belfast pub lunch at Pat's Bar, while looking out on a waterfront that is being transformed by the prospect of peace.
Now that BA has realized that an increasing number of its customers are eschewing shop front staff and call centers for the ease of online booking, the airline is closing the shutters on 17 of its U.K. Travel Shops and a Belfast-based customer call center.
"The message that goes out is that Belfast is a happening city, that Belfast is a music city and that changes the perception of Belfast, " he said.
BBC: MTV European Music Awards are 'game changer' for Belfast
The call for a Northern Ireland Saint Patrick's Day holiday followed a recent decision by Belfast City Council to refuse funding for a Saint Patrick's parade in Belfast.
North Belfast MP Nigel Dodds praised efforts to show Belfast in a positive light, particularly a campaign by the Belfast Telegraph.
The Regional Development Strategy - adopted by the Executive only last year - confirmed a 'Belfast First' retail strategy and 'precaution' about other retail initiatives.
BBC: John Lewis decision not Attwood's to take says Robinson
"This was an attack on my, and the SDLP's, right to represent and speak out for a better Belfast and reconciled Northern Ireland, " she said.
Mr Robinson accused Mr Atwood of using a "Belfast First" policy.
BBC: John Lewis: NI Executive must decide says Peter Robinson
Police investigating the murder of a man in Belfast city centre have made a fresh appeal for information about the attack.
BBC: Fresh appeal over murder of Christopher Mackin in Belfast
Police have now said a bomb alert in north Belfast was a hoax.
Mr McGuinness praised the Royal Black Institution, which apologised "for any offence caused" to clergy and parishioners of a Catholic church in north Belfast during a parade last month.
BBC: North Belfast riots: Robinson and McGuinness meet Baggott
On a lighter note, Mr Robinson commented on the DUP Mayor of Belfast Gavin Robinson's efforts to grow a moustache as part of the Movember campaign: "You'll never win seats in east Belfast looking like a Mexican bandit".
BBC: Peter Robinson: Catholic 'majority want NI to stay in UK'
Brian Ervine, the new leader of the political party associated with the UVF, told Spotlight that a senior north Belfast loyalist's apparent decision to become a "supergrass" could harden the position.
The North Antrim representative said illegal nets had been seized in the lough equivalent to running a net from Belfast City Hall to Ballymena Town Hall, a distance of around 30 miles.
It is then alleged Mr Gamla travelled to Stranraer, boarded a ferry to Belfast and then travelled to Dublin, where he caught a flight to Poland.
The claim was made by a prosecution lawyer during a hearing for two Belfast brothers charged after a police investigation into animal cruelty and illegal dog fighting.
Detectives investigating the attempted murder of a police officer in east Belfast have issued a fresh appeal for information.
Meanwhile, a 37-year-old man from Belfast suffered a jaw injury when he fell about 300ft (90m) from the Miners Track on the same mountain.
BBC: Snowdon walker airlifted after 1,300ft Watkin Path fall
Meanwhile, around a dozen women from the loyalist Shankill Road area of Belfast staged a protest outside UUP headquarters where the meeting was being held.
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