California Highway Patrol Issues Missing Person Advisory
Authorities are searching for a 32-year-old man who was last seen on foot in Antioch.
Updated on Oct. 16, 2026 in Accidents
The California Highway Patrol has issued an endangered missing advisory for 32-year-old Stephen Simmons. He was last seen in Antioch on Wednesday evening.
Why it matters
The advisory is intended to mobilize public assistance in locating vulnerable individuals who may be in danger. Authorities are actively seeking information across three counties.
The California Highway Patrol activated the advisory Friday morning to cover Alameda, Contra Costa, and San Francisco counties. Investigators believe the 5-foot-6, 110-pound subject is currently on foot.
The players
California Highway Patrol
This state law enforcement agency is responsible for enforcing traffic laws and assisting with missing person alerts across California.
Stephen Simmons
He is the 32-year-old individual currently subject to an endangered missing advisory.
The details
Stephen Simmons, who has black hair and brown eyes, was last seen near Bellflower Drive and Baywood Circle. Officials are urging residents in the three-county area to report any information regarding his whereabouts.
Timeline
Wednesday, October 14, 2026: Stephen Simmons was last seen in Antioch.
Friday morning, October 16, 2026: The endangered missing advisory was issued.
Legal Context
The search for Stephen Simmons follows protocols established by the California endangered missing advisory program for locating high-risk individuals. This mechanism allows the California Highway Patrol to coordinate cross-county alerts to assist in time-sensitive recovery efforts.
Residents in Alameda, Contra Costa, and San Francisco counties should remain alert and report any sightings of the individual described. Authorities are prioritizing the safety of the public by extending the search range across these jurisdictions.
The takeaway
Public awareness is vital when law enforcement issues endangered missing alerts for vulnerable individuals. Residents are encouraged to monitor official communications from the California Highway Patrol for any updates on the investigation.
Further reading
For more information on state safety alerts, visit the California accidents section.
Source note: This article includes information reported by KRON4.
