Prelude: A Supernatural Suspense series

A young man is supernaturally transformed! It all began when 17-year-old Alec, a New Orleans teenage jock, discovered a terrible family secret involving his younger sister, Catalina. Alec's ensuing rage and desire for retribution took over. His fury was the catalyst that propelled Alec into this paranormal change.
As both angel and demon, he is a protector of innocent victims and a punisher of those who hurt them.
Was the Winters' family secret instrumental in changing Alec's life or was it his destiny?