Man convicted of plan to toss fireworks at San Diego officers during ‘No Kings Day’ protests

A former U.S. Navy SEAL, Gregory Vandenberg, was convicted by a federal jury in New Mexico for plotting to attack law enforcement officers in San Diego with explosives during planned protests.

Details of the Plot

Prosecutors stated Vandenberg intended to launch fireworks at officers during “No Kings Day” protests scheduled for June 14, 2025. He purchased six mortar fireworks and 72 M-150 firecrackers on June 12 while traveling from El Paso to San Diego, stopping at a travel center in New Mexico.

Did You Know? Vandenberg specifically inquired about the explosive impact and potential to harm others when questioning a store clerk about the fireworks.

According to prosecutors, Vandenberg wasn’t interested in the aesthetic qualities of the fireworks. He “emphasized that he was not interested in the color or display of the fireworks — only in their ability to cause explosions and harm law enforcement.” He even allegedly attempted to recruit a travel center employee to join him in the attack.

Travel center employees alerted police, providing Vandenberg’s license plate number. He was arrested the following morning in Tucson, Arizona.

Evidence Presented

A search of Vandenberg’s vehicle allegedly revealed the fireworks, as well as clothing displaying “antisemitic, anti-Israel, and extremist symbols,” including a T-shirt with the Al-Qaeda flag and another calling for the destruction of Judea. Prosecutors also allege “violent and extremist content” was found on his phone, expressing “ire toward the U.S. government.”

Expert Insight: The convergence of planned violence against law enforcement, the acquisition of explosives, and the presence of extremist symbols raises serious concerns about the motivations behind this case and the potential for escalation. The focus on causing harm, rather than simply making a statement, is a particularly troubling element.

Vandenberg was found guilty Friday of transportation of explosives with intent to kill, injure or intimidate and attempted transportation of prohibited fireworks into California. He now faces up to 10 years in prison.

Frequently Asked Questions

What protests was Vandenberg planning to target?

Vandenberg was planning to target “No Kings Day” protests scheduled for June 14, 2025, in San Diego.

Where was Vandenberg arrested?

Vandenberg was arrested in Tucson, Arizona, the day after purchasing the fireworks in New Mexico.

What evidence was found in Vandenberg’s possession?

Prosecutors allege that a search of Vandenberg’s vehicle revealed fireworks, clothing with extremist symbols, and violent content on his phone.

What factors might contribute to individuals being drawn to extremist ideologies and violent plots?

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