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SBSD - Headquarters
Wednesday August 16th, 2023 :: 11:23 a.m. PDT


Sheriff's Department Investigating Lethal Force Encounter that Occurred in Fontana

DATE/TIME:  August 15, 2023 / 3:54 p.m.

INCIDENT:   Lethal Force Encounter (LFE) Investigation

LOCATION:  16600 Clubhouse Drive, Fontana

DECEDENT:  Alejandro Diaz, 45-years-old, Resident of Fontana

On Tuesday, August 15, 2023, the San Bernardino County Sheriff’s Department’s Specialized Investigations Division responded to the Sierra Lakes Golf Club to investigate a lethal force encounter (LFE) involving the Fontana Police Department.  The male subject involved was identified as Alejandro Diaz, an off-duty deputy with the Los Angeles County Sheriff’s Department. 

After the LFE, Diaz was transported to a hospital where he was pronounced deceased.  The cause of death is pending autopsy. 
It is standard protocol through a Memo of Agreement (MOA) with the Fontana Police Department that the San Bernardino County Sheriff’s Department investigates LFEs involving Fontana Police Department’s Officers.  

The investigation is ongoing, and no further details are available for release. Anyone with information on this incident is urged to contact the Specialized Investigations Division at 909-890-4904.  Callers wishing to remain anonymous should contact the We-Tip Hotline at 1-800-78-CRIME (27463) or go to

Refer:  Detective N. Paslak

Station:  Specialized Investigations Division

Phone No.  909-890-4904

Case No.  DR# 602300058  H# 2023-089

SHANNON D. DICUS, Sheriff-Coroner
San Bernardino County Sheriff-Coroner Department

SBSD - Headquarters
655 E 3rd St
San Bernardino, CA 92408

Emergency: 9-1-1
Non-emergencies: 909-387-3700

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