The FBI arrested a Seattle woman accused of shooting a Border Patrol agent to death on Monday.

Teresa Youngblut, 21, had been under "periodic surveillance" before the killing and was found in possession of black tactical gear, ammunition, and weapons, according to an FBI… pic.twitter.com/ZTU5dMXjZw

— Katie Daviscourt 📸 (@KatieDaviscourt) January 24, 2025

Bauckholt's still live LinkedIn profile says he worked in the New York office of Tower Research Capital, the high frequency trading firm. Tower Research didn't respond to a request to comment on Bauckholt's recent employment status, but the alleged expiry of his visa suggests he may no longer have been working there.

Tower Research Capital is a high frequency market maker and prop trading firm that operates high speed trading strategies. US government data suggests that two people at Tower Research have had H1B visas renewed this year: a head of data on a base salary of $350k and a quant trader on a base salary of $165k. It has 1,200 employees in total.

Bauckholt's LinkedIn profile says he joined Tower in October 2021 after two years at Radix Trading. He also completed a Jane Street internship in 2018. Jane Street interns now earn around $20k a month.

Bauckholt graduated from Canada's university of Waterloo with a bachelor's in mathematics. In 2014 and 2015 he appears to have won gold and bronze prizes respectively in the International Mathematics Olympiad.

"On January 20, 2025, at approximately 3:00 pm, an on-duty, uniformed United States Border Patrol (USBP) Agent initiated a stop of a blue 2015 Toyota Prius Hatchback with [a] North Carolina license plate... to conduct an immigration inspection as it was driving southbound on Interstate 91 in Coventry, Vermont," read an FBI criminal complaint obtained by Fox News.

"The registered owner of the vehicle, Felix Baukholt, a citizen of Germany, appeared to have an expired visa in a Department of Homeland Security database. Youngblut was driving the Prius, and Baukholt was the lone passenger in the Prius," it continued.

"Between approximately 3:00 pm and 3:15 pm, agents reported gunshots at the scene," the affidavit said. "Supervisory Border Patrol Agent Cameron Thompson was notified of the incident and responded to the scene of the stop, arriving at approximately 3:35 pm. He spoke with two of the Border Patrol Agents involved in the incident. They described that both Baukholt and Youngblut possessed firearms and that Youngblut drew and fired a handgun toward at least one of the uniformed Border Patrol Agents without warning when outside the driver's side of the Prius."

"Baukholt then attempted to draw a firearm. At least one Border Patrol Agent fired at Youngblut and Baukholt with his service weapon," the affidavit also said. "The exchange of gunfire resulted in Border Patrol Agent Maland, Youngblut, and Baukholt all sustaining gunshot wounds. Baukholt was declared deceased at the scene as a result of his injuries."

Maland also died after being taken to a local hospital for emergency care, while Youngblut is currently receiving care at a facility in New Hampshire, according to the affidavit.

According to the affidavit, agents had secured a .40-caliber Glock 23 “on or near” Youngblut after the shootout, while a .380-caliber M&P Shield firearm was secured “on or near Baukholt after the incident.”

The affidavit said the evidence is “consistent with Youngblut having fired the .40-caliber Glock 23 at least twice from the driver’s side of the Prius, one or more Border Patrol Agents returning fire with at least seven 9-millimeter shots, and then agents clearing the Glock 23 40-caliber and M&P Shield .380-caliber pistols, resulting in the described casings and cartridges being on the ground.”