ARBUCKLE (CBS13) — A community gathered in mourning on Monday to remember a mother and her two teenage daughters who were killed by a wrong-way driver over the weekend.

Hundreds of classmates and friends of the victims gathered at a prayer vigil experiencing heartache, shock, and making a call for healing.

Alyssa and Brenda Santiago and their mother, Sofia Ramirez, were killed on Saturday night on Interstate 505. The California Highway Patrol says a driver going the wrong way slammed into their car head-on. Officers believe the driver was going at least 85 mph.

The coroner identified the wrong-way driver as 36-year-old Francisco Garcia from Antioch. Investigators say it’s unclear whether alcohol was a factor.

At the neighborhood where they family lived, the stepfather asked for privacy.

The news of the family’s death has shocked the small town of Arbuckle where everybody seems to know somebody.

“As a community, everyone’s going through a sad moment right now,” Gaby Rosas said.