Coniston massacre
The board sat for 18 days in January 1929 to consider three incidents (Brooks, Morton and Tilmouth) that resulted in the deaths of Aboriginal people, and in one more day, finished its report, finding that 31 Aboriginal people had been killed and that in each case the death was justified.
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.