CNN — As soon as he could, Kevin Ward Jr. got in a race car. As soon as he could, Kevin Ward Jr. started winning races.Ward was just 4 years old, not even in school, when he got behind the wheel of a go-kart. In his first race, he took second. In the next eight years, he won 250 events and six championships, according to his racing website.Racing was his passion, people who knew him said. NASCAR’s Tony Stewart hits, kills driver Tony Stewart investigated in crash death”He loved it,” his next-door neighbor, Robert Shue, told CNN affiliate WSYR.”He’s just a good kid, a hard worker. He loved doing what he did, and he loved his family,” Vicki Shue told the station.Ward died Saturday night from injuries suffered when he was hit on a small dirt track by the race car of NASCAR star Tony Stewart. The 20-year-old had gotten out of his car after a tangle with Stewart caused him to spin out, and he appeared to want to vent his anger at the three-time NASCAR champion.