[4] He was accompanied by Shahedul Islam Sifat, Shipra Debnath, and Tahsin Rifat Nur; all of whom are film and media students at Stamford University Bangladesh.
[6] Inspector Pradeep called Superintendent of Police ABM Masud Hossain and informed him an army major had been killed in an "encounter.” The recording of the conversation was leaked on social media.
[7] After Khan's death, Shahedul Islam Sifat and Shipra Debnath were detained by Bangladesh Police while Rifat was handed over to his family.
[5] On 2 August 2020, the Public Security Division of the Ministry of Home Affairs created a four-man investigation team to look into the death of Khan.
[12] His withdrawal was demanded by the Retired Armed Forces Officer's Welfare Association to ensure a fair and neutral investigation.
[13][14] On 13 December 2020, charges were pressed against 15 individuals by the investigating officer, Senior Assistant Superintendent of Police Mohammad Khairul Islam of Rapid Action Battalion.
[16] According the investigation officer of Rapid Action Battalion, Khan had discovered evidence of Inspector Das' involvement in the Ya ba trade in Cox's Bazar District while making a documentary.
[10] On 24 August 2021, Sharmin Shahriar Ferdous gave her testimony at the Cox's Bazar District and Sessions Judge's Court.
[10] She alleged Khan was killed by Inspector Liaqat Ali at the instructions of Officer in Charge of Tekhnaf Police Station, Pradeep Kumar Das.