Coniston massacre
Brooks was killed on or about 7 August 1928, and his body was partly buried in a rabbit hole. No eyewitnesses to the actual murder were ever identified, and there are conflicting accounts of the discovery of the body and subsequent events.
Jallianwala Bagh massacre
On 13 March 1940, at Caxton Hall in London, Udham Singh, an Indian independence activist from Sunam who had witnessed the events in Amritsar and had himself been wounded, shot and killed Michael O'Dwyer, the Lieutenant-Governor of Punjab at the time of the massacre, who had approved Dyer's action and was believed to have been the main planner.