Ross McWhirter was a well-known British author and one of the co-founders of the Guinness Book of Records. He was also involved in various public initiatives, including a campaign urging action against the escalating violence in England associated with the Provisional Irish Republican Army (IRA). On the day of his assassination, McWhirter held a press conference where he announced a substantial reward for information leading to the capture of those responsible for recent bombings and shootings, drawing considerable media attention. This reward was seen as a direct challenge to the IRA, which had been conducting a violent campaign for a united Ireland.

Following the press conference, McWhirter was shot outside his home in North London. The assassination shocked the public and underscored the serious nature of the conflict. The act was believed to be retaliatory, as the IRA sought to silence any opposition to its violent methods and declare the consequences of crossing them. This violent response highlighted the pervasive atmosphere of fear and intimidation that surrounded public discourse regarding Irish nationalism in Britain during this time.

The event marked a turning point in the struggle between the British authorities and the IRA. It showcased the lengths to which the organization would go to defend its cause and instill fear in those who dared to speak out against it. The assassination of McWhirter, a prominent figure, brought further attention to the violent tactics of the IRA and the impact of the conflict on civilian life in England.