The widow of a Pennsylvania police chief who was killed in 1980 said Thursday that she has no interest in speaking with the suspect’s former wife, who buried the fugitive in the couple’s backyard in Dartmouth after he died in 1997.

“I just cannot believe that this woman followed this murderer and did whatever he wanted her to do,’’ said Mary Ann Jones, the widow of Saxonburg, Pa., chief Gregory Adams, who was fatally shot during a traffic stop there in December 1980. “I thought women were more independent than that, but obviously not.’’

Jones was referring to Lillian Webb, the 83-year-old former wife of Donald Eugene Webb, who was charged with Adams’s slaying but evaded capture until he died of a stroke.

Investigators last week dug up Donald Webb’s remains from Lillian Webb’s backyard on Maplecrest Drive in Dartmouth.

A stunning search warrant affidavit from Massachusetts State Trooper Michael F. Cherven, made public after the remains were identified, showed that Donald Webb lived in secret rooms with Lillian Webb, first in New Bedford and later at the Dartmouth house.

The affidavit said Lillian Webb dug a grave in the yard for her fugitive husband at his request and buried him there after he died from his second stroke, in 1997. She officially divorced him in 2005, while he remained on the FBI’s Ten Most Wanted Fugitives list.

Lillian Webb received immunity in exchange for disclosing her husband’s secret burial. She and her lawyer have not responded to requests for comment.

Jones said Thursday that she has never spoken with Lillian Webb, whom she sued earlier this year in an effort to force her to cooperate.

“I have no intention of speaking with her,’’ Jones said. “None whatsoever. I’m not wasting my time or my energy on someone like that. I’m not going to do that.’’

Cherven, who is attached to Massachusetts Attorney General Maura Healey’s office, had been leading an illegal gambling investigation targeting Lillian Webb’s son, Stanley, since January, the affidavit said.

But the trooper became interested in the Dartmouth residence as early as November 2016, when FBI Special Agent Thomas MacDonald told him there was a hidden room in the basement, Cherven wrote.

That room was about the size of a large shower stall, with a hook lock fastened to the inside of the door, according to the affidavit. Investigators found a cane and three cardboard boxes of silver coins inside the room, as well as 42 photos of Donald Webb in the residence, Cherven wrote.

Donald Webb was a career criminal with ties to the notorious Patriarca crime family in Providence, authorities have said. At the time of Adams’s murder, he was believed to be casing stores to rob in Pennsylvania and had been a federal fugitive for more than a year.

Jones said Thursday that Lillian Webb demanded immunity before she helped investigators, even though the statute of limitations had run out on any crimes she could be charged with.

“She wanted that piece of paper,’’ Jones said. “She just didn’t realize that she was clear anyway.’’

Travis Andersen can be reached at travis.andersen@globe.com.