Tony Stewart is off the hook criminally in the death of Kevin Ward Jr. -- but Ward's family is threatening to drag the NASCAR superstar into court with a civil lawsuit.
Ward's family members say they are infuriated because they believe Stewart "intentionally tried to intimidate Kevin by accelerating and sliding his car towards him, causing the tragedy."
As TMZ Sports first reported, the Ontario County Grand Jury in New York decided not to charge Stewart after reviewing evidence from accident reconstruction experts.
The family is adamant Stewart was at fault. They refused to comment about toxicology tests which showed Kevin had marijuana in his system at the time of his death.