DENVER (KDVR) -- On July 8, 2011, Armando Mata-Magallanes called his girlfriend and his roommate asking them to sell his truck.

A day later, he was found shot to death on the side of Interstate 76 in Weld County. Now, 14 years later, the Weld County Sheriff's Office is still trying to find the unknown man who was apparently holding Mata-Magallanes for ransom for the truck money and later killed him.

According to a Weld County press release, Mata-Magallanes' girlfriend reported him missing on the evening of July 8, 2011, after she had last seen him leave for work around 5:30 a.m. He was supposed to have returned at about 2:30 p.m.

She told investigators at the time Mata-Magallanes had called her after leaving for work saying he needed money and asked her to sell his truck.

When she asked him why, an unknown man speaking Spanish got on the phone and told her she needed to sell the truck for $30,000 and that "they" would call back at 11:30 a.m. the next day.

That call never came.

On July 9, 2011, a BNSF Railroad employee reported a body near Interstate 76 northeast of Lochbuie. The body was later identified as that of Mata-Magallanes, who had died of a gunshot wound.

Investigators later found out Mata-Magallanes never showed up for work the day of the phone calls about the truck money.

Mata-Magallanes was last seen driving a 1983 blue Volkswagen Rabbit that was later recovered
in the 1600 block of 29th Avenue in Denver.

Anyone with information about the murder of Armando Mata-Magallanes can call the Weld County Sheriff’s Office tip line at 970-340-6464 or email to [email protected].