Original sentence: At one point, he enlisted in the Marine Corps, but never served due to having undergone surgery to repair a displaced retina suffered during his boxing career.He has a wife, Jackie, and two children, a daughter, Kayla, and a son, Jared
Edited sentence: However, the Season Six Episode of "Knockout", it is revealed that Vance's friend who was murdered who use to be a marine and who had his records has gone 'missing', also suffered from a displaced retina [as Gibbs requested the imaging done by Ducky on a hunch], thus casting doubt on whether in fact Vance ever even served as a Marine.It is believed that he enlisted in the Marine Corps, but never served due to having undergone surgery to repair a displaced retina suffered during his boxing career.Leon Vance also has a wife, Jackie, and two children, a daughter, Kayla, and a son, Jared