The family of a San Carlos man who died Thursday morning fears he may have tried to crawl home on his hands and knees after being hit by a car.

Jack Jackson, 52, was found seriously injured and unconscious in the driveway of his home in the 8000 block of Beaver Lake Drive.

Around 5:15 a.m., a man who was driving by spotted Jackson and called for help.

“I really want to thank the neighbor, whoever you were sir, for stopping and coming to the house and getting our attention,” said Celeste Montalvo-Jackson, the victim’s wife. “He was the one who called the paramedics and the police.”

Jackson later died at Sharp Memorial Hospital from brain trauma, according to the family.

At this point, investigators aren’t sure of the location where Jackson was hit. He suffered a broken pelvis and had scraped elbows and knees, which indicates he could have tried to crawl home after being hit.

Neighbors said they did not hear a crash or squealing breaks.

“If it’s a hit and run, how did he wind up in the driveway?” neighbor Steve Anderson said. “If you’re in a hit and run, you’re not going to back up, haul the guy into his driveway and then take off. You just take off. It makes no sense to me.”

The victim’s family said he took regular early morning walks through his San Carlos neighborhood.

“He had a heart of gold. He was a sweetheart,” said Rosalina Jackson, the victim’s mother.

Officials were initially tight-lipped about what had happened. They later revealed they were investigating a felony hit and run.

Police shut down a portion of Beaver Lake Drive during their investigation.

Investigators are asking anyone who heard the collision or who saw blood that may have been overlooked to call authorities.