Another possibility, besides the CIA, is Israel's Mossad and it's "shadow wars".

He suggested that the CIA or another intelligence service may have been responsible.

Interesting how CNN only mentions the CIA in their title, and its denial in the article, instead of "another intelligence service".

The details of her murder, and the ballistics of the bullet used by "a sniper", and away from the crowd of protestors are inconsistent with that of Iranian "militia" in both use of weaponry and motive. Killing a harmless unarmed girl, away from the crowd, would serve no one's purpose except the purpose for which her death is now being employed, quickly, by western media.

It is no secret that covert operations are being employed against Iran by both the US and Israel for "destabilization".

For an even more skeptical view in the video of her death and the background story see this: Was the Neda Agha-Soltan video a Hoax?

This is something we will never know the truth of.

On the contrary, in the end the truth usually does trickle out, as with the above ! `You can keep a secret between 2 people; as long as one of them is dead` LOL I read that somewhere.

Here is more truth you can know about:

18 Jun 2009 Former Pakistani Army General Mirza Aslam Beig claims the US Central Intelligence Agency (CIA) has distributed 400 million dollars inside Iran to evoke a revolution. In a phone interview with the Pashto Radio on Monday, General Beig said that there is undisputed intelligence proving the US interference in Iran. "The documents prove that the CIA spent 400 million dollars inside Iran to prop up a colorful-hollow revolution following the election," he added.

This is something we will never know the truth of.

We can know, however, who is benefiting the most from her death, and how it is being used.

Read this update. Do you think they will find this eye-witness, the physician who was first to her?:

01 Jul 2009 Iran's Police Chief, Brig. Gen. Esmail Ahmadi-Moqaddam, says Interpol is searching for a man who witnessed the death of Neda Agha-soltan....]Iranian authorities say that security forces have not fired at protesters, adding that the incident was "a premeditated scenario" to defame Iran.

He points the finger at the Basij and then just disappears into thin air. How convenient.