I have looked into this closely enough and I can confidently say that master-P has the following alts (this may not be an all-inclusive list):
So you're saying one of master-p's alts is IronMarvel. But IronMarvel2 is not?
I remember IronMarvel2 creating that account to say his original account IronMarvel had been hacked:
https://bitcointalk.org/index.php?topic=924237I remember this because I suggested to him about contacting BadBear which he did and regained control of his account.
I believe these accounts were both owned by the same person initially.
So master-p is a hacker too!

I cannot agree more with what peonminer has proved.
peonminer should post his evidence here
https://bitcointalk.org/index.php?topic=1307926.0 to get that badass's attention.
