DEPEW, N.Y. — For the last year, Hans and Beate Prigl of Depew have dealt with the devestation of losing their son Robert, killed by a hit-and-run driver.

"If you could go through hell and come back, it's me," Robert's father Hans said. "I cannot go to sleep at night."

The Prigl's are haunted both by what happened and by having no idea who did it. Robert Prigl was 55 years old when he died on Aug. 8, 2017. He was walking across Genesee Street to the Buffalo Niagara International Airport in Cheektowaga when a somone's car hit him and kept driving.

Prigl walked from his parents' house nearby in Depew to catch a flight back home to Florida. He had spent time in Depew helping them for the summer.

"He was just a loving, caring brother," said Angela MacLean, Robert's sister. "I can't believe that somebody would do something so cruel and just take off without acknowledging what they did and pretty much destroyed our family."

Cheektowaga Police have little evidence to solve the crime. No witnesses have come forward. The only clue is a piece of grainy surveillance video showing a 1970s or '80s General Motors vehicle they think was involved. They're hoping, a year later, someone can provide some answers.

"Any normal person, it would be eating away at their conscience, and maybe they would come forward and help us out and make a right from a terrible wrong," said Cheetowaga Asst. Police Chief Jim Speyer.

Detectives have stayed in contact with the Prigl family as they try to find justice for the victim. Anyone with information can call Cheektowaga Police at 716-686-3580.  All tips remain confidential.  

The Prigl's are hopeful someday they'll gain a measure of clarity.  

"Just give us some closure, or give my parents closure. I think that's more important to us than anything else," MacLean said.

Hans Prigl had this message for whoever is responsible for Robert's death:

"It's going to come back and get you too. Sooner or later, they are going to pay for it."