Crazy Martin

Who is crazy Martin (in the town of Newarre)? And could he possibly be the same Martin that was part of the mercenary group that assisted Kvothe in defeating the bandits (Martin, Deadan, Hespe and Tempe) from TWMF?

I noticed that in the main books and TNRBD when people talk about crazy Martin in front of Kvothe, he gets slightly protective of him/tries to play down the fact that he might be crazy…

It’s also mentioned in TNRBD that crazy Martin makes the best arrows/fletchings and is a veteran trapper/hunter. Which aligns with Martin’s (mercenary) skill set.

I’m curious to hear people’s thoughts.