Bunting is born into an Ulster Protestant family in East Belfast. His father, Ronald Bunting, had been a major in the British Army and Ronnie grew up in various military barracks around the world. His father became a supporter and associate of Ian Paisley and ran for election under the Protestant Unionist Party banner.
Having completed his education and graduating from Queen’s University Belfast, Bunting briefly becomes a history teacher in Belfast, but later becomes involved in the Northern Ireland Civil Rights Association and then with Irish republican organisations.
Bunting joins the Official Irish Republican Army (OIRA) around 1970 as he is attracted to their left-wing and secular interpretation of Irish republicanism and believes in the necessity of armed revolution. The other wing of the IRA, the Provisional Irish Republican Army, is seen to be more Catholic and nationalist in its outlook. At this time, the communal conflict known as the Troubles is beginning and the Official IRA is involved in shootings and bombings. He is interned in November 1971 and held in Long Kesh until the following April.
In 1974, Bunting follows Seamus Costello and other militants who disagree with the Official IRA’s ceasefire of 1972, into a new grouping, the Irish National Liberation Army (INLA). Immediately, a violent feud breaks out between the Official IRA and the INLA.
In 1975, Bunting survives an assassination attempt when he is shot in a Belfast street. In 1977, Costello is killed by an Official IRA gunman in Dublin. Bunting and his family hide in Wales until 1978, when he returns to Belfast. For the remaining two years of his life, he is the military leader of the INLA. The grouping regularly attacks the British Army and Royal Ulster Constabulary (RUC) in Belfast. He calls in claims of responsibility to the media by the code name “Captain Green.”
At about 4:30 AM on October 15, 1980, several gunmen wearing balaclavas storm Bunting’s home in the Downfine Gardens area of Andersonstown. They shoot Bunting, his wife Suzanne and another Protestant INLA man and ex-member of the Red Republican Party, Noel Lyttle, who has been staying there after his recent release from detention.
Both Bunting and Lyttle are killed. Suzanne Bunting, who is shot in the face, survives her serious injuries. The attack is claimed by the Ulster Defence Association (UDA), but the INLA claims the Special Air Service are involved.
Upon his death, Bunting’s body is kept in a funeral parlour on the Newtownards Road opposite the headquarters of the UDA. On the day of the funeral, as the coffin is being removed, UDA members jeer from their building. The Irish Republican Socialist Party wants a republican paramilitary-style funeral for Bunting but his father refuses and has his son buried in the family plot of a Church of Ireland cemetery near Donaghadee.