Children of GaiaBreed:
Jason was always a little large for his age, but he didn't use it to bully other children or gain favor in any manner. He used it to maintain the peace. He played sports all through his youth and found a penchant for baseball, eventually finding a scholarship to a state school with an aim toward the majors afterwards. Life was looking as though it would turn out all right.
But this isn't the world of fluffy bunnies and happy endings. This is the World of Darkness, and in the World of Darkness your hopes and dreams are just devices for irony to exploit. Just before the third game from the end of his college career, he was on a bus trip to the opposing team's field when a patch of ice caused the bus to jackknife and flip onto its side, throwing several of his sleeping teammates from the vehicle, some of whom were relatively unharmed, others dying instantly. Jason wishes he had been in either of those groups. He lay pinned under fallen luggage, which is saying something for a man of his considerable strength, and dislodged seating. A seat was bent in such a manner that it was cutting the circulation from his leg. Muscle tissue ceased receiving blood. It began to atrophy. All of this would have been easily fixed, but at the hospital a chart mixup between himself and another individual from the bus caused them to amputate. They took half of his leg. They took his career. They took his joy. He wishes they'd taken his life, almost daily.
Being at least a world where justice or corruption holds sway, the hospital was sued. They paid out the nose. In order to keep the secrecy of the system and their colossal blunder, he was paid hush money in an immense sum, paid into an annuity so he didn't simply blow it, what with his career hopes down the drain. He now helps administrate a youth baseball league and its counterpart in softball for a city, teaching kids the love of a game which was his for years upon years. Day to day he asks for sponsorship of team or field, anything to keep himself out of a bottle.
Harris has never known that his father is Garou. His mother didn't even know, having met him at a gathering of some sort. Jason always assumed illicit drugs or beer, a college mixer. It was one of the reasons he kept himself away from such scenery. He has never had any rage issues, and is largely unaware of the store of spiritual energy within himself, only knowing that he has a personal wellspring of tenacity.
How he came to be currently embroiled in the supernatural, well that's another story...