 In 1925, he published "India as I knew it", in which he wrote that his time as administrator in Punjab was preoccupied by the threat of terrorism and spread of political agitation.In 1940, in retaliation for the massacre, O'Dwyer was assassinated by the Indian revolutionary, Udham Singh.Michael Francis O'Dwyer was born on 28 April 1864 in Barronstown, Limerick Junction, County Tipperary, to John, a landowner of Barronstown, Solohead, and Margaret (née Quirke) O'Dwyer, of Toem; both County Tipperary, Ireland.