Mohammad Abdul Hannan Khan

Mohammad Abdul Hannan Khan (died 28 June 2020) was a Bangladeshi police officer, veteran of the Bangladesh Liberation War, and chief coordinator of the International Crimes Tribunal’s Investigation Agency. He was known for his role in investigating the assassination of Sheikh Mujibur Rahman, the jail killings of 1975, and the intellectual killings during the liberation war.

Source: Wikipedia — https://en.wikipedia.org/wiki/Mohammad_Abdul_Hannan_Khan