A family says they want justice after their son was killed in a car crash in Stratford last month.

Jason Fonseca-Kennedy, 26, of Waterbury died on Aug. 22, four days after he suffered critical injuries.

Police say on Aug.18, Fonseca-Kennedy was driving his pickup truck on South Avenue when he was struck by a car coming off the Exit 31 off-ramp from I-95 south and his truck rolled over.

The driver of the other car was identified as Jamar Blackburn, 38, of Bridgeport. He survived the crash.

Fonseca-Kennedy's family tells News 12 he was a hard-working entrepreneur who started his own trucking company.

"He was the prince of our family, and he was taken from this earth in a senseless way," says his aunt Olinda Fonseca.

"To blow through a stop sign, that's no accident. That was deliberate and it's unfortunate that he happened to be the one driving by in his car and flipped over. And he gets to live, and I have to bury my son last week,” said his mother, Marlene Fonseca.

While police are releasing few details, the family says authorities have told them multiple agencies are working together to determine exactly what happened leading up to the crash.

The family believes what happened was not a simple accident.

"I think that was moreso someone who had total disregard to human life,” said his mother.

Police say the crash remains under investigation.