Slain nurse's murder investigation uncovers her killer's criminal past, web of lies

This story was originally posted on May 6, 2023. OPERATOR: Vero Beach Police.  SGT. BRAD KMETZ: All right Mike, you got a pretty good reason why we're here, I'm sure. AUDIO INTERVIEW: "I would say that he was ambitious."

Diana Duve was 26 when she vanished one night in 2014 in Vero Beach, Florida. She was last seen alive leaving a bar with her on-again, off-again boyfriend, Michael Jones. To witnesses, the couple seemed to be having a good time, though they told police that at one point it looked like Duve was upset. She never returned home. NEIGHBOR: Yeah hi, I think I got a domestic for you. The next-door neighbor and his girlfriend sound like they're getting into it. MIKE JONES: I'll tell you unequivocally, I don't know where she is. … I don't have the slightest clue. I've tried to find her. AUDIO INTERVIEW: "I could trust him with things that I would trust my family with ..."

Her mother knew something was wrong when Diana didn't call her, something she did every day. "It set me off immediately," Lena Andrews told "48 Hours" contributor Michelle Miller. "I was trying to tell everybody who would listen … if she's not calling me, it's because she can't." NEIGHBOR: It's been going on for about an hour. AUDIO INTERVIEW: "Michael was a genius. … one of the smartest people I had ever you know dealt with."