Leon was a member of a Motorcycle club in Canada. His club moved a charter to Chernarus, and he was one of the few people who were sent to get the charter up and running. When he arrived, he was post up in a hotel for a week or two, trying to get the lay of the land, going for rides every day, looking for a building he could purchase for his new character in Chernarus. And that's when the infection started to take it's toll. Initially he was with the members of his club, but not long after they were making mistakes going out on runs high or drunk, and when it was down to him and the last of his club, they turned on each other, fighting and shooting, so Leon got out, and rode as fast as he could, until his bike broke down. Not being able to find parts for his bike, he unwillingly ditched it, and set off on foot, looking for food, shelter, and a place to settle in and call home.