There's an audio recording. Listen to it, not third hand columnists opinions.
I have. The audio is very poor, and sounds to me to be possibly edited (too many random sound level jumps).
It could also be that he simply made a misstatement, and meant to say "not" and simply didn't, and then failed to correct himself.
There's also his word choices when he refers to Muslims; he always uses "they" or "them" rather than "us" or "we."
That, combined with his personal background, suggests that he isn't a Muslim; he may still identify strongly with them, but as of yet there isn't anything showing that he has actually converted.
EDIT:
This website (which to be fair I have never heard of before so I don't know how reliable it is) claims to have called the Judge's receptionist, and that the receptionist denied that the judge was a Muslim. There seems to have been other calls made to his office that have turned up the same result, but I don't have any sources for them.
i guess i'm the only one who wanted to punch the atheist too? both in and out of costume. does pa have "fighting words "law
So you'd respond to someone acting in bad taste by acting in VERY bad taste? And even if PA had a "fighting words" law, the atheist's actions would not be considered so and would be fully covered by the First Amendment.