FOX4 cameras were there as Lendon Lee Adams, 23, was brought back to Fort Worth on Friday.
Police said Adams shot Jonathan Luevano, 29, at a Fort Worth Quik Trip on Bryant Irvin Road early Thursday morning.
A store clerk found the victim inside the cab of his gas tanker truck.
The truck company Luevano worked for said he was there to make the final delivery on his late shift.
On his way into police headquarters, Adams seemed aloof about the accusations.
"Can you tell us some of the specifics?" FOX 4 asked him.
"I don't know anything, like specifically," said Adams. "Like, I'm really confused as to why I'm here. Like over the past couple days, I've been like freaking out because, like, there's been cops that have been arresting me and like searching my vehicle, and I'm very confused at this point."
"What have they told you so far?" FOX 4 asked.
"Really no details at all," said Adams. "They've just been like asking me questions and I'm really confused."
Fort Worth police say surveillance cameras at the QT captured a white Mustang around 1:30 in the morning.
According to the arrest warrant affidavit,"When the white colored Ford Mustang approaches the area of the parking lot where Jonathan Luevano was working 5 to 6 gunshots can be heard on the audio portion of the surveillance video."
A few hours later, a Fort Worth detective saw the Mustang drive by the QT. When they pulled it over, Adams was driving.
They found a 9-millimeter Glock and a Colt 380 handgun in his car.
As they took him to police headquarters to be interviewed, detectives took his car to have it searched.
Police say it wasn't until Friday afternoon that ballistics made a preliminary connection.
According to the arrest warrant affidavit, "The projectiles recovered from the freightliner are 9mm and were shot from the Glock handgun that was recovered from the Ford Mustang."
Adams was arrested at his Parker County home.
Luevano's family still has few answers as to why the senseless act of violence even occurred.
The 29-year-old moved to North Texas a few years ago from southern California through a job transfer.
His only family here include neighbors and friends.
Police say this was not a robbery, and so far, there doesn't appear to be any connection between Luevano and Adams.