Did Assad Gas his country?

What are the reason as to why Assad would gas his people vs why he wouldn't gas his people?

He wouldn't.

If he was going to do it, he would've done it a few years ago.

SO why is everyone pointing the finger at him?

Easy way to end a conflict and install a new puppet.

Why would he have done it years ago?

Because the world was far more fed up with his shit.

Things are getting better, even hedging towards peace, and you're gonna tell me he just decides to gas people?

Was Assad responsible for the recent gas attack? Who did it and why?

He did do it years ago

Do you have a source where i can read more about it?

he was winning the meme war and had russian help getting rid of (((isis)))
he had no reason to outrage the international community and face the backlash