Tonight on Dateline.

You tried to put me through help, but I am still here.

A dramatic turn in the case of a fugitive with multiple identities and more than a dozen accusers.

He seemed very sympathetic and reassuring.

He said he graduated Harvard. He went from charming to a monster in a heartbeat.

Stop ignoring me!

I wondered if he was going to kill me in that basement.

Nicholas has quite an alleged spree of assaults.

He does.

He was a devil's spawn. He really was.

I learned that Nick was being solved by the FBI for fraud.

He'd just kind of disappear.

He said, we believe he's faked his own death, that he's in Europe.

Did you sexually assault anyone? Did you defraud anyone?

No, no, no, no. No.

That's a right, no, no, no. That's a right, no, no, no.

I felt like you kind of represented all the women in that moment.

Right?

The judge needs to know.

This is not a man you can trust.

After a year's long manhunt,

while an international con man,

...