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A Stockton family is desperately searching for a 60-year-old man who was supposed to return home more than a week ago after working as an umpire in a softball tournament in Southern California, KTLA sister station KTXL in Sacramento reported Monday.

The last time Timothy Altheide was seen or heard from was Nov. 19, when he was involved in a car crash on the busy interchange between the 10 and 101 freeways in East Los Angeles around 1:10 p.m., according to the Stockton Police Department.

“It was a very minor collision,” Stockton Officer Joe Silva told KTXL. “Both parties exchanged information and then Timothy was seen leaving the area. And that’s really the last contact that we’ve actually had with someone actually seeing him.”

Altheide was believed to be heading westbound after leaving the crash site, according to police.

He was expected home that same day but never showed up, according to family members.

“Nobody just vanishes into thin air, especially on a busy freeway like that,” said Brandon Altheide, the missing man’s son.

Altheide is asking for the public’s help in finding his father.

“He watches the kids for me because he stays here and watches them for me while I’m at work. For him not to show up, it was kind of disturbing,” he told KTXL. “If he’s not going to be back he’s going to call. He’s never not called.”

The collision is an added worry for the family, as Timothy Altheide already suffers from medical issues.

“He had hepatitis. From what we’ve been told that after so long of not having it, the liver starts to go out and that’s what causes throwing up the blood,” the son said.

Altheide told his family he wasn’t feeling well, but hasn’t answered his cellphone since then, according to police.

Taking matters into their own hands, the missing man’s family spent the weekend traveling to Southern California, taping up flyers at rest stops along the way and visiting hospitals in hopes of finding their dad.

“It’s the holiday season, somebody had to see something driving back or driving down. We just want to know,” Brandon Altheide said.

Timothy Altheide is described by police as white, about 5 feet 10 inches tall, weighing approximately 280 pounds, with blond hair and blue eyes.

He drives a 2018 black Hyundai sedan with California license plate No. 8BHN329.

Anyone who knows anything about his disappearance or who has seen Altheide is urged to call Stockton police at 209-937-8323 or 209-937-8245.