 In 1909 Naren Gossain, crown witness for the prosecution in Alipore bomb case, was shot dead within Alipore Jail by Satyendranath Boseu and Kanai Lal Dutt.Ashutosh Biswas, an advocate of Calcutta High Court in charge of prosecution of Gossain murder case, was shot dead within Calcutta High Court in 1909.In 1910, Shamsul Alam, Deputy Superintendent of Bengal Police responsible for investigating the Alipore bomb case, was shot dead on the steps of Calcutta High Court.