I saw a report initially from Adam Teicher, and then Adam Schefter also confirmed that the Panthers have signed Ron Edwards.
This leaves us with a pretty big hole in the middle of the line. As of now, Anthony Toribio (who was a practice squadder most of last year) and 6th round pick Jerrell Powe are the only NT's on the roster.
I really hope they go out and spend money on a stud like Aubrayo Franklin. That would really shore up the D-Line.