Complex sentence: He is signed to World Wrestling Entertainment (WWE), where he wrestles in their developmental territory, Florida Championship Wrestling (FCW), was a part of the second season of "NXT", and now appears on the "Raw" brand.
Split into simpler sentences: He is signed to World Wrestling Entertainment (WWE), where he wrestles in their developmental territory, Florida Championship Wrestling (FCW). He also was a part of the second season of "NXT", and now appears on the "Raw" brand.