two issues that were released to promote the 2nd and 3rd games. the 1st issue was released before the 2nd game, and the 2nd issue before the 3rd game.
He's sly's son. I thought his name was dexter. I always thought that Jimmy was Sly's distant cousin. hes pretty much a cross between a fox and a raccoon because hes sly's and carmelita's son.
so far there's only two comics but i bet there making a third one
Go on google, or amazon. Amazon could probably have it
http://imageevent.com/gamescans/gamemagazines/slycooperminicomicbook