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Solved case · 2020

2020 Boogaloo Murders

SOLVEDCONVICTED
Updated
Updated Jul 7, 2026
Oakland and Ben Lomond, CaliforniaView on the map

The short answer

2020 Boogaloo Murders in brief

In late May and early June 2020, two ambush-style attacks in California—one outside a federal courthouse in Oakland and one at a deputy's home in Ben Lomond—left a federal security officer and a sheriff's sergeant dead. Investigators tied the attacks to the boogaloo movement, which sought to exploit George Floyd protests as cover.

Key facts

Year
2020
Place
Oakland and Ben Lomond, California
Status
SOLVEDSolved
Victims
Damon Gutzwiller and David Patrick Underwood
Outcome
Convicted: Steven Carrillo and Robert Alvin Justus Jr.

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The case file

What happened

In late May and early June 2020, two linked ambush-style attacks against security personnel and law enforcement officers occurred in California, killing two people and injuring three others. Federal authorities said the attacks were carried out to advance the ideology of the boogaloo movement, a loosely organized far-right anti-government movement whose adherents describe preparing for a second American civil war.

The first attack occurred on May 29, 2020, when an assailant fired a rifle from a white van outside the Ronald V. Dellums Federal Building in Oakland, California, striking two Triple Canopy security officers contracted with the Federal Protective Service. One of them, David Patrick Underwood, was killed; the other was seriously injured. The shooting took place near ongoing George Floyd protests but was not connected to them. Surveillance video showed the van had no license plates and had been in the area for over half an hour before the shooting.

On June 6, 2020, Santa Cruz County Sheriff's Department deputies went to a residence in Ben Lomond, California, where they were fired upon with an AR-15-style rifle and attacked with improvised explosive devices. Sheriff Sergeant Damon Gutzwiller was killed, and another deputy was seriously injured. Two responding California Highway Patrol officers were also fired upon, wounding one. The shooter, later identified as Steven Carrillo, was hit during the exchange, fled on foot, and hijacked a vehicle, on which he wrote phrases in his own blood referencing the boogaloo movement, including "boog," "I became unreasonable," and "stop the duopoly." He was later apprehended after being restrained by civilians during an attempted second carjacking.

Carrillo, a 32-year-old U.S. Air Force staff sergeant stationed at Travis Air Force Base, was arrested in connection with the Ben Lomond attack. Evidence recovered from an abandoned van connected to the Oakland shooting, including a ballistic vest bearing boogaloo symbolism, led investigators to Carrillo. The FBI stated that Carrillo and a second man, Robert Alvin Justus Jr., had used the Oakland protests as cover to target law enforcement and had no intention of participating in the demonstrations. Justus surrendered to authorities five days after Carrillo's arrest.

Carrillo was charged with 19 felonies, including murder and attempted murder, with lying-in-wait enhancements. In February 2022, he pleaded guilty to killing Underwood and the attempted murder of the second security officer, and was sentenced to 41 years in prison for the Oakland attack in June 2022. On June 28, 2022, he pleaded guilty to the murder of Gutzwiller and was sentenced on August 26, 2022, to life in prison without parole. Justus was charged with aiding and abetting murder and aiding and abetting attempted murder, pleaded not guilty, and was ultimately convicted and sentenced to life in prison on March 15, 2024.

The case drew public attention after several conservative commentators and public figures, including then-Vice President Mike Pence, made statements linking Underwood's death to the George Floyd protests, which Oakland officials and media watchdog groups characterized as inaccurate.

12 dated entries · 2020–2024

Timeline

  1. Drive-by shooting outside the Ronald V. Dellums Federal Building in Oakland, California, kills security officer David Patrick Underwood and seriously injures a second officer.

  2. Investigators state they believe the attackers were targeting uniformed officers; evidence from an abandoned van leads to Steven Carrillo's home in Ben Lomond.

  3. Santa Cruz County sheriff's deputies are ambushed with gunfire and improvised explosive devices at Carrillo's Ben Lomond residence; Sergeant Damon Gutzwiller is killed and another deputy seriously injured. Carrillo is later arrested.

  4. Robert Alvin Justus Jr. surrenders to authorities at a federal building in San Francisco.

  5. FBI announces Carrillo's association with the boogaloo movement and states the Oakland attack used the protests as cover.

  6. Carrillo pleads not guilty to the murder charge related to the Ben Lomond attack; wears a face mask with political messaging during arraignment.

  7. U.S. Attorney's Office in Minnesota announces federal charges against another boogaloo adherent alleged to have communicated with Carrillo before the Oakland shooting.

  8. Carrillo pleads guilty to killing Underwood and to the attempted murder of the second security officer.

  9. Carrillo is sentenced to 41 years in prison for the Oakland drive-by shooting.

  10. Carrillo pleads guilty to the murder of Damon Gutzwiller.

  11. Carrillo is sentenced to life in prison without parole for Gutzwiller's murder.

  12. Robert Justus is sentenced to life in prison.

4 named in this file

People

Victims first. Every legal label is set from public records and court outcomes, not from the prose.

  • Damon Gutzwiller

    VICTIM

    Santa Cruz County Sheriff's Sergeant, killed during the June 6, 2020 Ben Lomond attack.[3]

  • David Patrick Underwood

    VICTIM

    Security officer contracted with the Federal Protective Service, killed in the May 29, 2020 Oakland shooting.[3]

  • Robert Alvin Justus Jr.

    CONVICTED

    Charged with aiding and abetting murder and attempted murder in the Oakland shooting; convicted and sentenced to life in prison in March 2024.[3]

  • Steven Carrillo

    CONVICTED

    U.S. Air Force staff sergeant convicted and sentenced to 41 years for the Oakland attack and to life without parole for the murder of Sergeant Gutzwiller.[3]

From the record

Quick answers

Who were convicted?
Steven Carrillo: U.S. Air Force staff sergeant convicted and sentenced to 41 years for the Oakland attack and to life without parole for the murder of Sergeant Gutzwiller. Robert Alvin Justus Jr.: Charged with aiding and abetting murder and attempted murder in the Oakland shooting; convicted and sentenced to life in prison in March 2024.

3 cited

Sources

Coverage is not a source: every fact in this file rests on the records below.

  • 2 Press
  • 1 Encyclopedic
  1. 2020 boogaloo murders

    EncyclopedicWikipediaAccessed Jul 7, 2026

Trust

Record history

First published
Jul 7, 2026
Last verified against sources
Jul 7, 2026
Corrections
None

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