Utah County Jail
Michael Ignatius Kufrin, 62, has been booked into the Utah County Jail for investigation of murder in the 1988 death of his former girlfriend, Peggy Sue Case.

SPANISH FORK — The former live-in boyfriend of a Spanish Fork woman missing since 1988 has been booked into the Utah County Jail for investigation of murder.

Skeletal remains discovered in a backyard concrete cellar were confirmed earlier this year to be that of Peggy Sue Case, 28, who was last seen on July 9, 1988, while leaving a party in Payson with Michael Ignatius Kufrin, 61.

Spanish Fork police announced Tuesday that an arrest warrant was issued for Kufrin, Case's former live-in boyfriend, who had long been considered a person of interest in her disappearance.

The remains, including a skull, were discovered May 22 in the backyard of a residence in Spanish Fork at 80 N. 800 East. The homeowner was doing some digging and found the remains wrapped in plastic mesh and a blanket about a foot and a half below the surface.

"With evidence from the original investigation that started back in July of 1988 and evidence from the investigation after the remains were found, investigators drafted an affidavit in support of an arrest warrant for Michael Kufrin," said Spanish Fork Police Lt. Brandon Anderson.

Kufrin was arrested in Illinois in July. On Monday, he was extradited back to Utah, according to police, and booked into the Utah County Jail for investigation of murder. Jail records list his address as Downers Grove, Illinois.

Case was last seen 29 years ago by her co-workers leaving a party. Friends reported that Case left the party with Kufrin, police said, and told detectives Kufrin was upset with her and accused her of flirting with other men that night.

Three days later, on July 13, 1988, a co-worker called police to report that Case hadn't shown up for work. On Sept. 3, 1988, officers obtained a search warrant to go through Case's and Kufrin's house, including the cellar, yard and crawl space under the house, police said. A K-9 was also used during the search that day. It's not clear why her remains were not found, or if they were possibly put there after the search.

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Two years after Case was listed as missing, Kufrin, then 34, was in the Utah State Prison on a conviction of attempted theft after police said he stole his boss' truck and drove to Nevada with firearms.

At an October 1990 parole hearing, he refused to answer questions about Case from members of the Utah Board of Pardons and Parole.

"I don't want to talk about it," Kufrin said.

He was released from prison in 1995. In May, Spanish Fork police said they did not know where Kufrin was living at the time.