He had disputes with majority of his neighbors, he singled out a particular group.
No one is desperate, but just pointing out how quick everything is judged and settled if it's the other way around and giving you bit of a dose of your own medicine via bit of satire. I'll throw some more of it you way..Had you guys spoken out against hard and extremist atheism, they may not have happened, where is the apology from notables in that field? What have they done to stand up and put a stop to this form of extremism instead of playing a role of apologist, herp derp.
Or, it might be following a particularly bad argument with this group. The motive is far from clear, but the eagerness to turn an incident like this into a religion-fueled hate crime by the family members and Muslim communities at large is a sign that religion is a very central element of their thinking, and they probably tend to look at everything through "religion tinted glasses".
What you fail to realize is that Atheism is not a religious institution, there are no imams or priests telling the "faithful" what the "correct" interpretation of certain issues are, it's more like an invitation for critical thinking, which "hard Atheism" is not - It's quite clearly spelled out by so-called "prominent" atheists such as Dawkins and Dennett.
But even as such, as far as "extremist Atheism" goes I'm having difficulty even understanding what you mean by that. I still believe you you need a very strong magnifying glass to find instances where Atheism was at the core of violence and not something else like the lust for power or a shaky mental state of mind.