One of the coldest of cold cases brought a commotion to Patricia Szpunar's Roseville, Michigan house Friday.
"I was told that a dead body might be buried in my back yard," Szpunar said.
Not just any body, but that of Jimmy Hoffa.
The former Teamster Union boss disappeared without a trace more than 37 years ago, a decade before Szpunar bought her home.
Hoffa's connections to organized crime have spurred numerous theories about his disappearance.
Earlier this year an informant told "Hoffa Wars" author Dan Moldea he saw a body being buried at the Roseville home around the time Hoffa vanished.
"He's adamant about his belief that Hoffa is buried at this particular location," author Dan Moldea says.
Moldea pointed the informant to authorities.
"We had credible information and we had to follow through with that," says Roseville Police Chief James Berlin.
Several days ago ground penetrating radar revealed something about two feet under the home's driveway.
On Friday police took two soil samples, going six feet deep.
"There was no visible remains that you could see through the tube," Berlin said. "The samples are kinda muddy and it's kind of hard to distinguish any particulars of any kind there."
Test results on the samples could be ready as soon as Monday.
Until then, the Hoffa mystery lingers.