I've been a cop for a long time, like 33 years, and lots of changes during that time.

The technology, the forensics, the dances, they've helped solve a lot of cases with law enforcement.

But you know, it still comes down to good people doing the right thing, good teamwork,

and of course, in police work, all your little bit of luck.

I'm Scott Weinberger, investigative journalist and former deputy sheriff.

I'm Anna Siga-Nikolasi, former New York City homicide prosecutor and host of investigation

discoveries, true conviction.

And this is Anatomy of Murder.

Let's start today by going back to where we ended last week.

We were talking about Cindy Vanderbake.

She was a 47-year-old woman who disappeared.

She and her husband traveled the boat show circuit.

Her last known whereabouts were in Maine when the couple left their traveling boat roach

show, and they were headed down to Maryland to attend a christening.

Her long-awaited nephew had been born.

But now Cindy didn't show.

But Steve did.

And it didn't take long before the families suspected foul play.

And it didn't take long for detectives to think Steve was their main suspect.

Police 101, you kind of let's retrace their steps.

Detective Nichols was assigned this case because no one else would take it.

They didn't know if she disappeared from Maine or Maryland or Florida or somewhere in between

...