Why I'm not an Atheist and believe in what I believe.

[Taqiyya Mockingbird]

Killing someone because they're not in your particular religion is pathetic.

Well, they don't kill people just because they are not in particular religion. They kill people for leaving their religion.

Did you miss the memo about that little incident on 9/11?

I see it as wrong and evil, but it's a "buried" evil with them. Scholars of Islam from all schools teach this law.

Are you claiming that "many scholars of islam" teach NOT to kill apostates? If so, please provide evidence of this assertion for all schools of islam.

It's also wrong because it contradicts their own holy book which teaches otherwise. (They follow narrations here over Quran)

Apparently you have not seen some of the juicier verses in the quran.

Any ways, the point is we can KNOW some things naturally (not everything), without needing to rely on analytical proofs.

Completing the circle of your circular reasoning. And again, "analytical proofs" is a red herring. We can KNOW what we have EVIDENCE for.

There are something we only know after analytical reasoning. There are something we know without analytical reasoning.

Again. The only sort of reasoning going on there is circular.

Killing people for fun is properly basic knowledge to be evil and wrong.

Do you really think islamists kill for fun?

We don't need to argue why even if there is good arguments as to why it's evil and wrong. We simply know it and perceive it as such.

You are declaring this by fiat. There are reasons against killing, but "we simply know it, and we can apply this to my made-up gawd too, hurr durr" is not one of them.