Will the gun attack in Northern Ireland derail peace?

"...there can never be peace in Ireland until the foreign, oppressive British presence is removed, leaving all the Irish people as a unit to control their own affairs and determine their own destinies as a sovereign people, free in mind and body, separate and distinct physically, culturally and economically."

The IRA said they disbanded this is living proof that the IRA will never disband. They are the people destroying the two countrys community's. They will never get an all ireland resorting to violence

Like all political extremists they pose for a cause when in fact they are in it for themselves. Where you have deprived people in your population, they will always have followers to their cause. Take the suicide bombers, do you ever see one of their leaders strapping a bomb to themselves? No, they brainwash simple or deprived people with promises of a better future or a wonderful hereafter. Whilst the majority of us have an active brain, they will never win or go to heaven for their misdeeds.
We are discussing whether a few racist, homicidal maniacs with guns and bombs should decide the future of Ireland and the UK, or whether elected representatives from every part of the community should sit down and decide between them a fair compromise.Will the shootings derail the peace process? Of course not!

1921 Treaty was foisted upon Michael Collins. Lloyd George the PM told Collins that if the Treaty was not signed that there would be a full-scale invasion and military occupation of Ireland so it can't be said that the Treaty was not signed under duress. There was to a Boundary Commission to settle the borders of the new NI entity but it never materialised. Also, to correct some posters, the Good Friday Agreement guaranteed anyone born in NI a right to be Irish or British or both.

"Britain merely liked the look of the North, populated it with their own people, spent centuries gerrymandering to keep it "local", and denied some citizens the vote till the 50s.Not the same really is it ?
Actually those planted in NI were Scots who were returning to their ancestral lands (Ireland) but having become protestant in the meantime. They have now been there 400 years, as long as the Vikings were in Ireland and far longer than those who colonised the USA.