Colonel Reginald Edward Harry Dyer CB ( 9 October 1864 - 23 July 1927 ) was a British Indian Army officer who , as a temporary Brigadier general , was responsible for the Jallianwala Bagh massacre in Amritsar ( in the British Indian province of Punjab ) .
Brigadier-General Reginald Edward Harry Dyer CB ( October 9 1864 - July 23 1927 ) was a British Indian Army officer responsible for the Jallianwala Bagh massacre .