SOUTHOLD, N.Y. (CBSNewYork) – With the discovery of a woman’s remains in Southold, police on Long Island may have cracked a cold case that’s more than 50 years old.

As CBS2’s Jennifer McLogan reported, the suspected killer is a former police officer who died in 1982.

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Inside a centuries-old farmhouse, within a burlap sack, buried six feet under the cellar, sonar equipment helped police unearth the bones that are believed to be those of young mother Louise Pietrewicz — who disappeared in 1966, leaving behind an abusive relationship and an 11-year-old daughter, who now lives in Upstate New York.

“She was a lovely woman, she didn’t deserve what she got,” daughter Sandra Blampied told McLogan. “I’ve cried a lot of tears over this, believe me, and it’s great finding her. I’m glad my uncle is still able to still be here.”

“Very emotional, very emotional. I break down,” brother Leon Jasinski said. “Thank God it’s over.”

For 52 years, Pietrewicz’s family has been looking for her, unaware of a secret love affair she had with a married man.

“When she went reported missing, she had a relationship with a William Boken, who was, at the time, a Southold police officer,” Suffolk County Police Chief Gerard Gigante said.

Southold Police, Suffolk County Police and New York State Police say they investigated, then the case went cold.

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“They weren’t able to locate her. William Boken, a few days after she was missing, resigned from the Southold Police and essentially disappeared,” said Gigante.

The cold case recently reopened following an in-depth story by the Suffolk Times. Police received information from Boken’s ex-wife, who told them where to dig in the home.

Boken died in 1982.

“Thanks, mom. You are back to me now,” Blampied said.

Pietrewicz’s family says finally she can have a proper funeral.

The family suspects that she was murdered because she was pregnant with Boken’s child.

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The recovered bones are now with the medical examiner’s office, where they hope to make a positive ID and determine a cause of death.