Dhaka Metropolitan Magistrate Debabrata Biswas issued the order on Sunday following a plea seeking for more time by the investigation officer (IO).
IO failed to submit the probe report to the court on Sunday.
The court has so far deferred the date of submission of the report for 64 times.
Sagar, news editor of private TV station Maasranga, and his wife Runi, senior reporter of ATN Bangla, were murdered at their rented flat in the capital’s West Rajabazar on February 11, 2012.
Soon after the incident, Runi’s brother Nawsher Alom filed a murder case with Sher-E-Bangla Nagar Police Station.