January 1, 2026 – San Bernardino County Sheriff’s Department officials report that after recovering three deceased males from Mount Baldy, one has been positively identified as Marcus Alexander Muench Casanova, a 19-year-old resident of Seal Beach, CA on Wednesday, December 31, 2025, 9:35 A.M.  The cause of death is still pending.   

The Sheriff’s Coroner Division is still working to ID the other two decedents.  

This investigation is still ongoing, and an update will be provided as soon as we have more information to release.  

Recovery operation for all the subjects is underway.  More information will be released as it becomes available. No further details are available at this time.

Related: San Bernardino County Sheriff Department Search and Rescue Recovery Underway for Three Deceased Hikers on Mount Baldy

Temporary Closure Order Issued for Select Trails at Mount Baldy in San Bernardino County for January 1-7, 2026

Temporary Closure Order Issued for San Gabriel Mountains National Monument, Including Mount Baldy Closure Area

San Bernardino County Sheriff's Aviation Rescues Two Stranded Hikers from Ontario Peak Trail at Mount Baldy

Anyone with information is asked to contact the Fontana Sheriff’s Station at (909) 356-6767 or Sheriff’s Dispatch at (909) 387-8313. Callers wishing to remain anonymous are urged to call the We-Tip Hotline at 1-800-78CRIME (27463) or you may leave information on the We-Tip website at www.wetip.com.

DATE: December 29, 2025, at 11:30 a.m.,

INCIDENT: Search for Injured Hikers on Mount Baldy 

LOCATION: Mount Baldy

SUBJECT 1: Marcus Alexander Muench Casanova, 19-year-old Resident of Seal Beach

SUBJECTS 2 and 3: Official ID Pending

Refer: Public Affairs

Station: Fontana

Phone No. (909) 356-6767

Case No. 032503334

Source: San Bernardino County Sheriff’s Department