Blaine Alexander

At home, Leo said, then at a work site.

And so he said that he was working on a house all day and was nowhere near the Schwartz home.

And that night, he was the birthday boy at that party Rebecca hosted for him.

He turned 37.

Just your basic birthday dinner?

Police were able to verify his story.

Leo answered their questions and gave a DNA sample.

As you talked to him, did he seem to wonder why he was there?

Investigators were hitting a wall.

Months went by with few answers.

Then new information came out.

It would change everything they thought they knew about the doctor.

What he did, it was horrific.

Was Dr. Schwartz's murder payback for something that happened decades before?

Seven months after the murder, Helen Como was reading the newspaper when she saw a jaw-dropping headline about her boss, Dr. Schwartz.

After he was murdered, a story broke in the papers that totally stunned me.

The article focused on a different murder, 50 years earlier in Hobbs, New Mexico.

home to a remarkable sculpture dedicated to people who served in the military, people like Victor Cook, a local dentist who served in the Army in World War II.

James Cecil knew him well.

In your 93 years, Mr. Cecil, you've seen a lot of things.