The man then got into a silver 2018 Dodge pickup and drove it in reverse through a bank of windows on the northwest side of the restaurant, coming to rest against the front counter.
Employees and customers began to flee at that point, said 14-year-old David Arias, Thomas’ brother, who was also working Tuesday.
When the vehicle came to a stop, the man exited and continued to pursue customers and employees through the restaurant, carrying what witnesses described as a stun gun.
As he followed them outside, the man ran into the uniformed BNSF agent, an eight-year veteran who was in a marked vehicle in the drive-thru lane, witnesses said.
“The cop was like, ‘Calm down and back off,’ but the guy kept approaching,” Thomas Arias said. “So the cop pulled his gun and shot him.”