A US Foreign Service Officer killed a woman and a dog, and wounded three other people in a road rage stabbing attack over the weekend.

Jared Llamado, 32, attacked the four women in the southbound lanes of Interstate 495 in Fairfax County, Virginia at around 1.20pm on Sunday following what authorities said was a minor traffic collision.

Michele Adams, 39, and Llamado’s own dog died as a result of their injuries, WJLA reports.

Dana Bonnell, 36; Mary C Flood, 37; and Heather Miller, 40, were also injured in the stabbing spree before Llamado was shot dead by a Virginia State Police trooper, authorities announced.

Llamado’s LinkedIn account shows he has worked as a diplomatic technology officer at the US State Department since September 2024, describing his role as managing the technology infrastructure and underpinning diplomatic operations.

State Department officials have since confirmed Llamado’s employment to Fox News Digital, calling him a ‘Foreign Service Officer,’ and adding: ‘We extend our deepest condolences to all those affected by this tragedy.’

Dispatch audio indicated that the situation escalated rapidly following the collision, with a dispatcher reporting that multiple victims were in the roadway.

Disturbing video shared to social media also showed a man with a large knife attacking the victims.

Jared Llamado, 32, killed a woman and a dog, and wounded three other people in a road rage stabbing attack
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Jared Llamado, 32, killed a woman and a dog, and wounded three other people in a road rage stabbing attack

Disturbing video shared to social media showed a man with a large knife attacking the victims
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View gallery

Disturbing video shared to social media showed a man with a large knife attacking the victims

Officials said the attack came after a minor traffic collision on Interstate 495 in Fairfax County, Virginia on Sunday afternoon
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View gallery

Officials said the attack came after a minor traffic collision on Interstate 495 in Fairfax County, Virginia on Sunday afternoon

 

When a trooper then arrived at the scene, Llamado confronted him with a knife, and the officer opened fire in self-defense, Virginia State Police said.

Llamado was then transported to a local hospital, where he succumbed to his injuries, while the trooper remained unharmed.

He is now on leave pending the outcome of an investigation into his use of force.

State Police said they are also investigating the cause of the crash, which closed down the southbound lanes of the major thoroughfare for hours.

Drivers, meanwhile, were left stunned by what had transpired on Washington DC’s Beltway.

‘There’s no reason to pull out a knife,’ one man told NBC Washington. ‘I mean, what did that solve? Nothing.’

He then lamented that ‘it could happen to everybody.’

‘Everybody just needs to cool down, calm down,’ the driver said. ‘There’s no need for it.’

Anyone with information about the stabbing spree is asked to contact Virginia State Police.