HOUSTON – It's a tragic death that has gone unsolved since November of 2015, when a Harris County father and husband lost his life while on the job.

Harris County detectives held a news conference with Juan Cano's family Friday, hoping to find answers.

They say the accident happened in the 6100 block of North Grand Parkway West on Nov. 3, 2015.

Cano was working in a blocked-off construction zone refueling trucks around 3:20 a.m. when a black Ford Mustang went past the barricades and down the road Cano was working on.

The vehicle struck and killed the worker.

Detectives say the Mustang got stuck in mud, and the car's occupants took off in Cano's fuel truck. Deputies don't know how the car ended up past the barricades or why.

But both Cano's wife and investigators have very strong messages for the suspects.

"Because of you, I lost my husband. And my kids, they don't have a father anymore," Cano's wife, Mayela Castor.

"If you were involved in this accident, then I strongly suggest that you come forward, because your cooperation may mean the very difference between a very serious crime and a possible accident," Deputy A. Tamez said.

Deputies are going off pictures they found from surveillance videos taken where the fuel truck was left about 25 miles away from the accident site.

Deputies want to know who these three people are -- two males and one female, all in their late teens to early twenties.

If you have any information about who these people might be, you're asked to call Crime Stoppers at 713-222-TIPS. You could earn a $5,000 cash reward.