A man from upstate New York has been apprehended in New York City after allegedly stating his intention to attack federal agents amidst the “No Kings” protests, which drew thousands of participants across the nation.

David Cox, 54, was arrested in Brooklyn on Saturday. According to reports from The New York Post, Cox claimed to have firebombs in his vehicle and expressed plans to confront ICE agents at the Manhattan demonstration.

Authorities say Cox made these threats while talking to a bystander at a gas station upstate on Friday night.

Cox faces multiple charges related to terrorism following his alleged threats against federal agents, coinciding with the “No Kings” protest in New York City on October 18, 2025. (Neil Constantine/NurPhoto via Getty Images)

After Cox departed, the bystander promptly contacted local authorities to report the alarming conversation.

The next day, as 100,000 demonstrators flooded the city’s streets for a “No Kings” rally, authorities were alerted that Cox’s vehicle had crossed into Brooklyn, and he was taken into custody without incident, according to the NYPD. 

Police did not locate any firebombs or weapons inside Cox’s vehicle, The Post reported. 

Over 100,000 people gathered and marched in Manhattan for the “No Kings” protest in New York City on Oct. 18, 2025.   (Neil Constantine/NurPhoto via Getty Images)

Cox is charged with making a terroristic threat, false report of terrorism and making a threat of mass harm, police said. 

The charges come after tens of thousands of protesters spoke out against President Donald Trump’s administration in the nationwide demonstrations, with attendees often clad in satirical costumes and carrying signs. 

Despite the large crowds descending on the Big Apple, no protest-related arrests were made, according to the NYPD. 

Police said Cox was taken into custody in Brooklyn without incident after he allegedly traveled from upstate New York to harm federal agents on the same day as the “No Kings” protest in New York City on Oct. 18, 2025.   (Neil Constantine/NurPhoto via Getty Images)

However, three people were arrested in Portland after federal authorities were forced to deploy tear gas on protesters when one rally turned violent. Additionally, 15 people were arrested at a protest outside a Broadview, Illinois, ICE facility. 

Fox News Digital was unable to immediately locate an attorney representing Cox.