First, I want to thank everyone who helped. The small details that you guys provided helped tremendously in finding out information. You guys were really helpful.
As I'm sure many of you know, Smeg has recently left Twitter. A few days ago, an account (@raelenes_) claiming to be the wife of Mark stated that Cass was really her husband and he had tricked us all into believing he was a she.
Since then, I and several others have combed the Internet in search of the truth. We have confirmed that Raelene and Mark are both from Hobart, Tasmania, Australia.
We have also confirmed the source of the profile picture used for Cass' account. The real person behind the picture is Stacey from Phoenix, Arizona. I have a confirmed address & telephone for the real person but will not be including any personal information that I have obtained.
In conclusion, it seems that we were duped. I wish I could say otherwise but after someone found Stacey's blog, it's hard to think otherwise.
As atheists, I know you guys are all waiting for evidence and here it is: