The Medcalf family is facing one of the most challenging times in their more than 55-years of marriage.

For the past year, ALS has confined Kathie Medcalf, 74, to a wheelchair. She can't walk and relies on her husband Frank, 77, to get her out of bed and feed her.

The family recently purchased a transport van to fit Kathie's wheelchair. To pay for the new vehicle, Mr. Medcalf dipped into their retirement fund and put their 2002 Dodge Dakota up for sale.

When an interested buyer went out for a test drive, they didn't return. The truck does not have license plates on it, but there's a tool box attached to the bed.

The man seemed very nice and even met his wife and asked to pray for her, Medcalf said.

“He knew everything that was going on in our lives. I couldn’t believe it," Frank said. "He just, he just didn’t plain come back.”

To make matters worse, the family is also dealing with a grandson who has brain cancer and their daughter's home burnt down last week.

Luke Minton is a stranger to the family but saw the post on the police's Facebook page. He created a GoFundMe account that has raised more than $2,5000 to help the family.

The Placer County Sheriff's office believes the truck is being driven by a man and a woman. Carlos Cortes, public information officer with the Roseville Police Department, said police are closing in on the suspects.

“At the moment we do have positive leads on the suspects, so we’re hoping that we’re going to be able to close this case and return that vehicle back to that gentlemen," Cortes said.

Anyone with any information is asked to contact their local police department.