Late on the night of October 23, 2025, security personnel at Coast Guard Base Alameda (on Coast Guard Island between Oakland and Alameda, CA) confronted a serious security threat when a rented U-Haul truck approached the installation’s access bridge and reportedly ignored multiple commands to stop. Witnesses and law-enforcement sources describe the truck as “driving erratically” as it entered the restricted area — a heavily guarded military site — a setting where any unexpected vehicle movement is treated with the utmost caution.

According to the complaint filed by federal prosecutors, the driver — identified as Brendan Munro Thompson (also known as Bella Thompson) — maneuvered the U-Haul onto the bridge and then backed it toward a line of Coast Guard personnel standing guard at the gate. Despite repeated verbal commands to stop, Thompson allegedly accelerated the truck in reverse directly toward the officers. The sudden reversal and rapid acceleration caused the guards to fear that the vehicle was being “weaponized.” Given the perceived immediate threat, they fired multiple rounds of live ammunition in self-defense.

Video captured by on-site photographers corroborates much of this account: footage shows the U-Haul reversing slowly onto the bridge under guard scrutiny, then accelerating backward suddenly toward officers before they open fire. Observers described hearing between 20 and 30 shots as the truck moved forward. Photographers later noted bullet holes in the vehicle’s cab and cargo box. While no Coast Guard personnel were wounded, the driver was struck — reportedly in the stomach — and a bystander was also hit by bullet fragment(s); both were treated at local hospitals and expected to survive.

In the immediate aftermath, law enforcement secured the scene, locked down the base, and coordinated with federal agencies including the Federal Bureau of Investigation (FBI) to investigate. The driver was taken into custody and charged under federal law with “assaulting federal officers with a deadly or dangerous weapon.” According to the complaint, the 10-foot-long rental truck was used as — or attempted to be used as — a weapon. Authorities noted that the driver underwent a mental-health evaluation, and legal proceedings remain ongoing.

What makes this case especially sensitive — and in many ways emblematic of modern security challenges — is the broader context. Earlier in the day, several hundred protesters had gathered outside the base, opposing a planned federal immigration-enforcement operation in the Bay Area. The base served as a staging area for agents, which had drawn attention and heightened tensions. Though federal agents had not yet moved in, the protests created a charged atmosphere. The fact that a U-Haul vehicle — commonly rented for civilian purposes — showed up under those conditions, then moved in a way that security forces deemed threatening, underscores the difficulty of distinguishing between legitimate civilian presence, protest activity, and potential violent action, especially under low-visibility and high-stress conditions at night.

Still, many questions remain unanswered. Investigators have yet to publicly establish a motive: whether the driver acted intentionally, was influenced by protest activity or ideology, suffered from mental-health crises, or was impaired. There is also no evidence — at least publicly disclosed — that the truck contained explosives or additional weapons, though the officers reportedly treated it as potentially weaponized.  The fact that bullets struck the vehicle (but not, apparently, security personnel) and that a bystander was injured only by a fragment complicates media and public interpretations: some see the shooting as necessary and justified self-defense; others worry about excessive use of force, the risk to uninvolved civilians, and what such a response reveals about militarized security at civilian-adjacent facilities.

Ultimately, the incident shows how quickly a seemingly routine checkpoint encounter can transform into a life-or-death moment — especially at a high-security installation where the potential for a “vehicle-as-weapon” scenario is taken seriously. For the U.S. Coast Guard and other agencies, this triggered a full security lockdown, law enforcement response, and a criminal investigation under federal statutes. For the surrounding community, it has ignited debate about protest, enforcement, civil liberties, and the balance between security and openness in public life. Regardless of the final legal outcome, the events at Coast Guard Base Alameda underscore the fragility of safety — particularly in volatile environments — and the weight of split-second decisions made by those sworn to protect.