For a blogger, probably nothing is more disturbing than seeing another blogger attacked for simply the words they write and say.

So just because they forgot about murdering Salman Rushdie or Taslima Nasreen, it does not mean that religious extremists have given up their commitment to fight free speech.

The brutal murder of Bangladeshi American humanist blogger Avijit Roy is the latest attack on free speech. His wife barely survived the machete attack. A suspect has been arrested and a local Islamist extremist group has accepted responsibility for the crime.

If such crimes occur in supposedly secular countries such as Bangladesh, what hope do we have in places like Pakistan, or in Iran or Saudi Arabia, where the state oversees the torture and murder of dissidents?

But what goes unchecked, and even largely unaddressed, again and again is this Islamist extremist idea that you can silence someone threatening holy ideas by attacking and killing them. It is something which is widely seen less of a problem, if one at all, than violating the sanctity of holy ideas.

There is probably some pattern when you see this happening from Dhaka to Paris. For a fringe political position, it is pretty pervasive among Muslim populations around the world, majority or minority.

A good sign of that is when you often hear that the blasphemers asked for it. Or that such bloggers and authors should not go on with publishing their ideas when they know that they would be threatening their lives.

If you speak to a conservative Muslim, who may not have anything to do with Islamist terrorist groups, you would hear about the necessity of curbing the voice of a dissident. Especially one who is proselytizing against Islam, and publicly defaming it.

This is precisely why the penalty for an apostate and blasphemer in Islam is death. And that is where actions such as these take their legitimacy from.

Every time an incident such as the murder of Avijit Roy occurs, and the rest of the world responds with condemning the unnecessary risk the victim took, this narrative is strengthened.

No matter how much liberal Muslims try denying the connection of this narrative with the faith, it does not make a cent of a difference to those who strongly believe in it. Of course, just the tiny fragment who takes the trouble of acting on their beliefs is declared terrorists.

Unfortunately, liberal and conservative Muslims live in two different universes, and are actually having no noteworthy conversation of reform, if any at all.

They believe in different set of moral values and claim a single label for the different codes.

This is why you simply cannot keep religion out of incidents such as the killing of Avijit Roy.

Even though you would hear them say that he got what he deserved.