Brent Christensen

And then going through, doing my checks, going forward, going backward, spending a lot more time frame by frame taking a look at it, I was able to determine that, yes, this is something different about this car.

So no one else had seen that before you did.

Yeah.

And then I kind of got a little excited because I'm like, hey, well, there's something there.

Sergeant Carter, everybody knows that he's a car guy, and he has a real close attention to detail on everything.

And I didn't see it, but he did.

It was a huge moment.

That information comes back to the FBI that there's a piece missing from that front right hubcap.

You could also see that the vehicle had a large sunroof, which was not observable in some of the other camera footage.

When they initially interviewed him, he was calm, did not appear to be nervous.

He said that he was home all day playing video games.

An FBI agent noted, well, he had a sunroof on his car.

I sent him back out there with a team and say, if there's a broken hubcap, let us know immediately.

And then they went back to that Saturn, looked at the car.

A couple minutes later, I get a photo

and it's a match.

It was the same hubcap that has been seen on the video.

The owner of that vehicle was Brent Christensen.

Christensen was a young man, 27, who had just completed a master's program with the University of Illinois in their physics department.

He was on the list of teaching assistants who were ranked as excellent by their students.