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Welcome to postmortem. I'm your host, Anne-Marie Green, and today we're discussing the murder of Mary Kay Hesse, a 17-year-old high school student from Wahoo, Nebraska. She was killed in 1969. 59, 55 years and multiple investigations later, one of the very first suspects, Joseph Ambrose, was finally arrested and charged with

Mary Kay's murder. Joining me now as 48-hour correspondent, Natalie Morales. Natalie, you worked on this episode.

It was, I mean, it was a doozy.

Yes, it was.

And good to see you again, Anne-Marie.

In fact, this is one of the longest cold cases that 48 hours has been working on.

Before we dive deeper, just a reminder to everyone, if you haven't listened to this episode

of 48 hours,

you're going to find it in the podcast feed just below this one. Listen and then come on back for

this conversation. Okay. So, Natalie, you know, watching the years tick by, I really didn't think

...