Cowardice.

The Guns Of Parisian Law Enforcement - The Firearm Blog:

 Let it not be said that when provoked, Paris won’t respond in kind. Following the cowardly attacks on the city last week, the French National Police came out in force armed with several different kinds of firearms,

From the Wikipedia definition:

Cowardice is a trait wherein fear and excess self-concern override doing or saying what is right, good and of help to others or oneself in a time of need—it is the opposite of courage. As a label, "cowardice" indicates a failure of character in the face of a challenge.^[1]Many military codes of justice proscribe cowardice in combat as a crime punishable by death (note the phrase "shot at dawn").
As a retraction of a virtue that many cultures may expect or have expected, cowardice rates as a character flaw which society or its representatives may variously stigmatize or punish.

The assault on unarmed citizens (and visitors) in Paris last week was an entirely unjustifiable predation on innocent civilians.  It should never have happened, and the predators who were the primary actors of the attacks demonstrated a terrible lack of compassion toward their victims.

But the predators had their own agenda, and they went about their assigned "chores" regardless of any human feelings they might have had.  It was not difficult for them, as they had no human feelings.

No compassion, no love of their fellow man; merely an intention to slaughter "unbelievers".

They had no "fellows", other than those of their companions who wanted only to kill anyone who did not ascribe to their particular set of values (which were no values at all).

No, these individuals were not physical cowards;  they had no expectation that they would survive their villainy.   They were fully willing to sacrifice themselves, if only they could take a few 'unbelievers' with them.

Their only goal was to predate their neighbors, to prove that even their neighbors were not safe, if the values which THEY embraced were not shared.

I have no room in my heart for those who embrace villainy.  Which, in a way, is exactly the message these murderers were attempting to disseminate .. except from the other perspective.

How does that make me any better than them?

I don't kill people.  They do.

"Forget all the self-serving bullshit that terrorists feed their media groupies.  The fact is, they're nothing but murderous psychopathic human sewage."