The other two accused shown arrested are former Dhaka North City Corporation mayor Atiqul Islam and Kafrul Thana Awami League president Jasim Uddin Mollah.
Police produced the four before the chief metropolitan magistrate (CMM) Court and submitted petitions to show them arrested in the case.
After hearing, Dhaka Metropolitan Magistrate Masum Mia granted the petitions and ordered their return to jail.
According to the case statement, on July 19 last year, victim Mahfuzur Rahman joined a peaceful demonstration at Mirpur-10 during the Anti-Discrimination Student Movement.
Police and ruling Awami League men allegedly opened fire on the protesters.
Mahfuzur Rahman was shot near his right ear and the bullet pierced through his head, killing him on the spot.
Following the incident, a murder case was filed with Mirpur Model police station on February 14 this year.
Salman F Rahman was named accused number 7, Anisul Huq number 8, Atiqul Islam number 20 and Jasim number 15 in the charge sheet.
