Benjamin Guy Horniman (17 July 1873 – 16 October 1948) was a British-Indian journalist and editor of The Bombay Chronicle, particularly notable for his support of Indian independence.
Two years after taking charge of The Bombay Chronicle, Horniman founded the Press Association of India, a union of working journalists that aimed at "protecting the press of the country by all lawful means from arbitrary laws and their administration, as well as from all attempts of the legislature to encroach on its liberty or of the executive authorities to interfere with the free exercise of their calling as journalists".
The exposé broke through the censorship on the matter and unleashed a wave of revulsion in the British public over the incidents and the Hunter Commission.
Horniman himself was arrested for his coverage of the massacre and criticism of the colonial government and deported to London, and the Chronicle closed down (temporarily).
[9] Horniman served as vice president of the Home Rule League under Annie Besant and called for a satyagraha campaign against the Rowlatt Act in 1919 through The Bombay Chronicle and at public meetings.
When Gandhi formed the Satyagraha Sabha to launch a national campaign against the Rowlatt Act, Horniman was made its vice-president.