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Husband of slain UCSF social worker sues San Francisco over hospital security

Husband of slain UCSF social worker sues San Francisco over hospital security

Rule Changes San Francisco, CA local

Lawsuit alleges the city knew a patient planned to attack the clinic but failed to stop him

Yesterday: Lawsuit filed against city

Overview

Updated 2 hours ago

Alberto Rangel, a 51-year-old social worker at Zuckerberg San Francisco General Hospital's HIV clinic, was fatally stabbed by a patient on December 4, 2025. His husband, Stuart Moulder, sued San Francisco on October 21, 2026, alleging the hospital had been warned of the attack but failed to stop it.

The lawsuit claims security knew the attacker planned to arrive that day and did nothing. It argues that basic measures like a single entry point and weapons screening, installed after the death, could have prevented it. California law makes public agencies liable for injuries caused by negligent security when threats are foreseeable.

Why it matters

If the lawsuit succeeds, it could force hospitals across California to treat staff safety threats as legal liabilities, not optional improvements.

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Key Indicators

$15M
Annual security funding committed by DPH after attack
The Department of Public Health pledged $15 million per year for security upgrades following Rangel's death.
45 days
City's window to respond to the wrongful death claim
The city had 45 days from June 1, 2026 to review the claim before a lawsuit could proceed.

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People Involved

Organizations Involved

Timeline

December 2025 October 2026

4 events Latest: Yesterday
Tap a bar to jump to that date
  1. Alberto Rangel fatally stabbed at ZSFG

    Incident

    Patient Wilfredo Tortolero-Arriechi attacks Rangel with a kitchen knife in Ward 86 hallway; Rangel dies two days later.

Scenarios

1

City settles lawsuit, pays damages and furthers security reforms

Likely Resolves by Q2 2027

Discussed by: Legal analysts and San Francisco Chronicle coverage

The city, facing liability for foreseeable harm, negotiates a settlement with Moulder. The agreement would include financial compensation and a commitment to keep the $15M annual security funding and possibly expand it. Settlement avoids a lengthy trial and public testimony from deputies.

2

Case proceeds to trial; city found negligent

Possible Resolves by End of 2028

Discussed by: Plaintiff's attorney Nick Casper, UPTE union

If settlement talks fail, the case goes to trial. Moulder's evidence includes staff warnings, the sheriff's deputy's failure to act, and the absence of a safety plan. A jury could award damages and set a precedent for hospital security liability.

3

Court dismisses case or city wins at trial

Unlikely Resolves by End of 2028

Discussed by: City Attorney's Office, defense attorneys

The city argues it had no legal duty to protect Rangel from a specific patient's criminal act, or that its security response was reasonable. A judge could grant summary judgment or a jury could find the city not liable.

Sources

(4)