Host / Investigative Reporter

It looked like to me that she had been in one hell of a fight.

Back at the station, she appears oddly relaxed and in a good mood when she's talking to officers, not the suspect of this intense missing person search.

She was very open, communicative, actually laughing, joking.

Whatever you want to do.

But nobody could have guessed what would turn up in Seibert's background and just how entangled her past was.

This is a woman who was reported missing by her own mother decades before this happened in 2004.

And once detectives start digging into the background of this woman, they discover she's not at all who she claims to be on a number of levels.

In fact, she had been using up to 18 different aliases and had lived in over 30 cities.

No one had any idea how truly just unhinged that she was.

And there's more surveillance video of Jennifer Seibert.

This was the most bizarre.

Missing mother in Nassau County.

Jolene Cummings was dangerously close to discovering that Jennifer Seibert was not Jennifer Seibert.

Jolene said there's something going on with her.

I'm going to find out.

She had stolen the dead child's information and created a false identity.

She took that name out of the cemetery.

She had 17 different names.

She lived in 14 states.

How do you even wrap your mind around that?