Who is James (Jim) Madison Ironheart (Anglicized from Eisenherz) from Cold Fire and what is their importance?

Jim has eyes that are the color of the morning sky, and have an arresting clarity and beauty to them. He has thick brown hair and is a well muscled man of about thirty five years old. He is soft spoken and smiles easily coming across like a Southern style gentleman. He moves with unusual grace, but is reluctant to discuss himself and has a poise that is unshakable. He has a Bruce Willis like wardrobe and enough aplomb for all of the men in Rhode Island. He lives in Laguna Niguel, in a small house he purchased in early January, after winning six million dollars in the lottery. Finalizing the purchase on May 3rd, the modest home is located on Bougainvillea Way in a relatively new neighborhood, and is the smallest home in the area. It has white stucco walls and a red tiled roof with large pane French windows, and is about two thousand square feet. It is a pleasant looking and incredibly ordinary looking house for such an extraordinary man.