Mahir Sarowar Megh was only five when his parents were brutally killed in the bedroom of their apartment in the capital's West Rajabazar.

He turned 10 by now, but the gruesome killing of the journalists -- Sagar Sarowar and Meherun Runi -- is sill shrouded in mystery with no visible progress in the investigation. 

Relatives who are seeking justice for the couple have begun thinking that the murder case has been covered up. The family also feels that the voice of people, in particular the journalist community, is fizzling out.

"The investigators meet us occasionally, especially before the anniversary, but never tell anything about the investigation. They just tell us to have patience and faith [in them]," said Runi's younger brother Nowsher Alam Roman.

On February 11, 2012, Runi, senior reporter of private TV channel ATN Bangla, and her husband Sagar Sarowar, news editor of another TV station Maasranga, were murdered. Their only son, Megh was at home at the time.

Initially, the child cried a lot for his parents. With time, as he grew up, he became silent about his parents.

Just a couple of days ago, Megh became excited as he heard that one of the photographs captured at his early age had been found. But with the picture in hand, his face turned pale. 

He was with his parents in the photograph, Roman said.

Immediately after the incident, the then home minister Sahara Khatun assured that killers would be arrested in 48 hours.

The Rapid Action Battalion, which is probing the case for four and a half years after the failure of the Detective Branch, hasn't made any visible progress in finding out the perpetrators.

"Everybody has become silent. It seems the investigators don't bother probing the murders," Roman said.

Yesterday, a Dhaka court directed Rab to inform it by March 21 about the progress in the probe as the investigation officer failed to submit any probe report.

With this time, law enforcement agencies, mainly Rab, have got the time extended for 48 times for the submission of the progress report.

Different courts have expressed dissatisfaction over the slow progress of the investigation.

Frustrated, Roman said, "It is very clear that the case has been covered up in a planned way.

“When the law enforcement agencies are capable of dealing with militancy and other sensational incidents, why are they failing in this case?

"We know not much progress has been made.... Yet we will be demanding justice until we get it," Roman said.

Contacted, Mufti Mahmud Khan, director of the Rab's legal and media wing, said the special force was sincere in carrying out the probe, to unearth the mystery of the sensational murders.

COURT ORDER

Meanwhile, Metropolitan Magistrate Mazharul Islam yesterday set the new date for submitting the progress report as Rab Assistant Director Wares Ali Miah, investigation officer, failed to submit any probe report.

Earlier on December 9 last year, the IO was asked to submit the progress report.

The special force has repeatedly come up with a version that they might get clues about the killers after receiving the test reports of DNA samples sent to two labs in the USA.

Rab received the results in March 2014 of the samples that include evidence collected from the crime scene and DNAs of 21 people.

The reports confirm presence of two unknown men during the murder. But the force could not make any progress even in identifying them.