Have insurgents admitted that they used chemical weapons?

Tonight a good friend send me these links which I would like to pass on to you with a few disclaimers:

http://www.crescent-online.net/2013/09/syrian-rebels-admit-using-chemical-weapons-wwwcrescent-onlinenet-4013-articles.html
http://www.infowars.com/rebels-admit-responsibility-for-chemical-weapons-attack/
http://www.mintpressnews.com/witnesses-of-gas-attack-say-saudis-supplied-rebels-with-chemical-weapons/168135/ http://www.infowars.com/exclusive-syrians-in-ghouta-claim-saudi-supplied-rebels-behind-chemical-attack/
 
Disclaimers and caveats:

a) It seems to me that these sources quote each other a lot; this might be because everybody else is trying hard to look away from this story.

b) I also heard another explanation which says that a group of CIA agents got surrounded in Ghouta and they decided to detonate the chemicals to create a diversion and flee.

c) As the Russian expression goes:" I am selling you these at the price I bought them for".

d) If you hear anything either corroborating on invalidating these versions, please let me know, ok?

Thanks,

The Saker