Inland Empire/ Crime & Emergencies

San Bernardino Argyle Court Death Investigation Continues

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Published on September 22, 2026
San Bernardino Argyle Court Death Investigation ContinuesSource: Google Street View

A man was found dead at an Argyle Court residence early Monday after deputies responded. The decedent was identified as Kevin. The death is being investigated as a gross negligent discharge of a firearm and an in-custody death.

According to the San Bernardino County Sheriff

, Central Station deputies were dispatched to the 25000 block of Argyle Court around 5:06 a.m. Monday.

The incident is being investigated as a gross negligent discharge of a firearm, according to the San Bernardino County Sheriff.

Deputies Respond to the Argyle Court Residence

Deputies responded to the residence, where Kevin was found dead.

The case is being investigated as a gross negligent discharge of a firearm and an in-custody death. California law requires law enforcement agencies to report in-custody deaths to the state Department of Justice within 10 days, according to the Law Offices of Dale K. Galipo.

Central Station, the county sheriff's oldest patrol division dating back to 1890, provides primary policing to unincorporated valley communities including Arrowhead Farms, Muscoy, Devore and Colton, according to the San Bernardino County Sheriff's Department.

Prior Arrest and County Mental Health Resources

Patmon had a documented criminal record predating the standoff. He was previously arrested for grand theft in San Bernardino County in September 2023, according to Local Crime News.

The case comes amid county data showing a rise in mental health crises. San Bernardino County recorded 236 suicides, 1,850 emergency department visits and 958 hospitalizations tied to self-harm in 2021, per San Bernardino County Public Health. The county's 2024 Community Health Assessment Report also found that the share of residents reporting suicidal ideation rose 56% between 2016 and 2021. The county's Department of Behavioral Health operates a 24/7/365 mobile crisis response service reachable by phone or text for people experiencing acute psychiatric emergencies, and the county also runs Crisis Walk-In Centers and Crisis Stabilization Units, including the Windsor Center on North Windsor Drive in San Bernardino, according to NAMI San Bernardino Area.

Investigation Ongoing

The investigation remains ongoing.

The Argyle Court death lands amid a broader stretch of enforcement activity across the county. Between September 14 and September 20, San Bernardino County law enforcement agencies seized 23 firearms and made 41 arrests as part of countywide crime suppression efforts under Operation Consequences, according to the Sierra Sun Times.