NASHUA, N.H. (AP) — A slaying victim discovered more than three decades ago in Arizona has been identified as a New Hampshire woman and police are investigating her connection to a man convicted of killing his estranged wife.

Authorities in Tucson, Arizona, say Brenda Gerow’s body was found in 1981 near the Pima County Fairgrounds. Her body was exhumed in 2012 and investigators used her skull to reconstruct her face and identify her.

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Gerow was about 20 when she left Nashua, New Hampshire, with John Kalhauser, a former Massachusetts man who is currently imprisoned for the murder of his estranged wife. Kalhauser had a picture of Gerow with him when he was convicted in that killing, which happened about 15 years after Gerow disappeared, police said.

Speaking by telephone through an interpreter for people who are hearing impaired, William Gerow said Wednesday he was overwhelmed by the news of his daughter’s death and doesn’t know why she was killed.

“We think she ran off, we don’t know,” he said. “My daughter was just gone and we have no idea why. I don’t know what happened. Thirty-three years and still no reason why. Where did she go?”

William Gerow said Arizona detectives visited him about three months ago.

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“I really feel blown over by this news,” he said.

The conviction in his wife’s death was not Kalhauser’s first conviction of a violent crime.

In 1996, he was convicted of shooting his ex-girlfriend’s boyfriend. Police said Kalhauser followed Michael Renk to a secluded spot in Lowell, Massachusetts, in 1979 after Renk had dropped his girlfriend off at work. Kalhauser was accused of shooting Renk three times in the face and neck.

Kalhauser was arrested and released on bail. He vanished before his next court appearance and spent 15 years on the run, living under the alias Donald J. Stecchi in Tucson, where he was arrested in 1995.

He used a name belonging to a former high school classmate, a deception that was discovered after Arizona police began investigating the disappearance of Kalhauser’s wife, who had filed for divorce.

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