Occasionally I'm surprised at how far the anti-freedom people will take things.  The banning of certain types of clothes took me by surprise.  That Gun Guys (anti-gun website) would suggest there is no such thing as justifiable homicide almost surprises me, but not quite.  In order maintain internal consistency they have to conclude that one life is just as valuable as any other life.  And so we end up with drivel like this:

What exactly is a “justifiable” homicide? Is it OK to kill people sometimes and not others.

And from their newsletter which doesn't appear to be their website there is this:

For whatever reason, killing another human being, an act made simple and easy by firearms, is an act not lightly taken, and not without consequences.  Though a killing may be considered "legal" by any number of laws, that doesn't necessarily make it right, and doesn't mean that we should broaden laws without regard for those consequences.

Anyone that has taken any firearms self-defense class will have been exposed to the downside of using deadly force to defend innocent life.  The taking of a life is serious stuff.  But sometimes it's the best of the available options.  And when the legal use of deadly force is employed the person on the receiving end of that deadly force made the choices that triggered the use of the deadly force.  It is they that bear the ultimate responsibility for their own injury or death.  For the "Gun Guys" to even hint that there is not a time and a place for the use of deadly force in the defense of innocent life shows how completely disconnected from reality they really are.  The last sentence of their email only seals that forgone conclusion.  I'm not surprised:

Legal or not, like anything else involved with firearms, "justifiable homicides" lead to more violence and pain.