On 22 October 1975, Hugh and Antonia Fraser, together with Caroline Kennedy, who was visiting them at their Holland Park home, in Kensington, west London, were almost blown up by an IRA car bomb placed under the wheels of his Jaguar, which had been triggered to go off at 9 am when he left the house; the bomb exploded, killing the cancer researcher, Gordon Hamilton Fairley. Fairley, a neighbour of the Frasers, had been walking his dog, when he noticed something amiss and stopped to examine the bomb.