Is it possible to Jailbreak my ois 6.1.3 iphone 4s?

I've been considering jailbreaking my iphone for a while now. A few months ago when I decided to do it, I read that it couldn't be done for ois 6.1.3. I was disappointed but didn't think about it too much until the other day. I did some research on google and some sites say it's not possible and some sites say it is. So now I'm confused! I just want to know for sure if my iphone 4s can be jailbroken or not?

I don't have a lot of knowledge about jailbreaking so I'm hoping someone that does can give me the real answer. Also any other information relative would be helpful.

Yes you can jailbreak, do it folloing the jailbreaking instructions and you can backward if you change your mind

Its not possible.