DELLE, Utah — Prosecutors have filed charges and issued an arrest warrant for a suspect in the killing of a truck driver near a rest stop in Tooele County.

On September 26, the victim’s colleague reported her death to the police. He said he was checking on the victim after noticing his GPS wasn’t working.

The victim, later identified as Jaspinder Singh, was found dead in the sleeper section of the truck’s cabin with lacerations to his neck and legs. The truck was parked on the side of the I-80 on-ramp in Delle, which is on the stretch of highway between Tooele and Wendover.

Singh is originally from California.

On Tuesday, the Tooele County Prosecutor’s Office filed charges of aggravated murder and kidnapping against Jaswinder Singh Dhillon, 46, who lives in Washington state. It was unclear whether the suspect and victim were related.

A no-bail arrest warrant was also issued for Dhillon.

Charging documents say Dhillon may have followed Singh from truck stop to truck stop along I-80, possibly as far west as Reno, before killing him.

Investigators said they reviewed surveillance footage from the Sinclair in Delle and dashcam footage from Singh’s co-worker’s truck. Cameras showed Singh’s truck arriving at the gas station around 3:30 a.m. About 30 seconds later, a white Mercedes was seen driving slowly around the parking lot. Footage reportedly showed the Mercedes slowly following Singh’s truck on the I-80 exit ramp.

Shortly after Singh parks his truck, a hooded figure is seen on camera walking from the Mercedes to Singh’s truck.

Investigators obtained “Life 360” GPS data from the victim that showed him driving down an adjacent road, then returning to the gas station, then getting onto I-80 and taking the next exit east of Delle. The truck appeared to turn around, head west on I-80, pass Delle, then take the next westbound exit. He then returned to Delle, where he was abandoned on the entrance ramp.

About an hour before the vehicles arrived at the Delle gas station, the victim’s truck and the Mercedes believed to belong to the suspect were seen on cameras at the port of entry near the Utah-U.S. border. Nevada, in Wendover. Hours earlier, security camera footage showed the two vehicles parking at gas stations in Wells and Winnemucca. Each time, the Mercedes appeared to be within a minute of Singh’s truck.

License plate readers identified the Mercedes as being registered to Dhillon. Investigators eventually obtained photos of the person driving the Mercedes. Officials said their appearance matched the hooded figure seen inside the Winnemucca gas station, as well as mugshots of Dhillon.

An arrest warrant has been issued for Dhillon. It is not yet known whether Dhillon has been taken into custody.