Anastasia Nicolazzi

Despite the cold weather, Yvonne's body temperature when police arrived confirmed her daughter's story that the attack had occurred within the hour, which meant the killer had a head start, but not a big one.

Despite the cold weather, Yvonne's body temperature when police arrived confirmed her daughter's story that the attack had occurred within the hour, which meant the killer had a head start, but not a big one.

And if you're wondering how you use molten sulfur to cast a mold from a boot print in the snow, you're not alone.

And if you're wondering how you use molten sulfur to cast a mold from a boot print in the snow, you're not alone.

Promising, but it was still not a ton to go on. And unfortunately, Yvonne's daughter was not able to offer many more details about the person she saw fleeing the scene.

Promising, but it was still not a ton to go on. And unfortunately, Yvonne's daughter was not able to offer many more details about the person she saw fleeing the scene.

According to Yvonne's kids, Jack Owen had been the source of considerable drama and heartbreak for their mother over the years since their parents' divorce.

According to Yvonne's kids, Jack Owen had been the source of considerable drama and heartbreak for their mother over the years since their parents' divorce.

What went on between them in the hours before that ambush was a mystery that just might hold the key to solving her murder.

What went on between them in the hours before that ambush was a mystery that just might hold the key to solving her murder.

But this being a tight-knit community, there were some ideas about who. According to her children, Yvonne had been romantically involved with a local man named Jack Owen for years.

But this being a tight-knit community, there were some ideas about who. According to her children, Yvonne had been romantically involved with a local man named Jack Owen for years.

But to those in the know, Jack and Yvonne's relationship was not always the picture of stability. Jack had a reputation as a playboy, and his relationship with another woman was a frequent source of friction between them.

But to those in the know, Jack and Yvonne's relationship was not always the picture of stability. Jack had a reputation as a playboy, and his relationship with another woman was a frequent source of friction between them.

So obviously, investigators were keen to interview Jack to both size up and secure his alibi for the morning of Yvonne's murder.

So obviously, investigators were keen to interview Jack to both size up and secure his alibi for the morning of Yvonne's murder.

When asked about rumors of a romantic affair with Mary Jo Luntzman, he was equally defensive.

When asked about rumors of a romantic affair with Mary Jo Luntzman, he was equally defensive.

And in fact, there were some of Yvonne's own friends that said the tension between her and Jack had finally come to a head.

And in fact, there were some of Yvonne's own friends that said the tension between her and Jack had finally come to a head.