Josh Mankiewicz

If she had known that it was Dan, he never would have had the opportunity to take her from behind.

And she could have safety planned in a way that could have saved her life.

So we know there's a structure.

It's just a matter of having companies prioritize those responses.

She marshaled the support of law enforcement.

She tracked every single contact.

Law enforcement wrote search warrants, issued those search warrants.

And she still got killed.

So I want to see not just state-based legislation, but federal legislation that requires these communication companies to respond within 48 hours when they've received

subpoenas or search warrants pursuant to stalking or domestic violence investigations.

This legislation is homicide prevention.

I don't know what she was mixed up in.

If you watch Dateline, there's always an end, and that wasn't it.

It was just the beginning.

I need answers. I'm her only voice. They are members of a society no one wants to join. The families and friends of the missing. You wake up in the middle of the night, the first thing you think about, where is he? It can happen pretty fast, can't it? If it can happen to me, it can happen to anyone. And they would like your help to bring their loved ones home. The not knowing is the hardest part.

I need answers. I'm her only voice. They are members of a society no one wants to join. The families and friends of the missing. You wake up in the middle of the night, the first thing you think about, where is he? It can happen pretty fast, can't it? If it can happen to me, it can happen to anyone. And they would like your help to bring their loved ones home. The not knowing is the hardest part.

In each episode of Dateline's award-winning series, we will focus on one missing persons case and hear from the families, the friends, and the investigators all desperate to find them. You're not going to stop, are you? This was your friend. No, sir. I will not stop. You will want to listen closely because just one small detail could make all the difference.

In each episode of Dateline's award-winning series, we will focus on one missing persons case and hear from the families, the friends, and the investigators all desperate to find them. You're not going to stop, are you? This was your friend. No, sir. I will not stop. You will want to listen closely because just one small detail could make all the difference.

It just happened to be my sister's purse and her library card. She saw there were women wearing her mom's clothing. And when we looked at his booking photo, he had a pockmarked face. Maybe you know something important. Maybe you could help investigators solve a mystery. I believe somebody knows something. They just haven't come forward yet.

It just happened to be my sister's purse and her library card. She saw there were women wearing her mom's clothing. And when we looked at his booking photo, he had a pockmarked face. Maybe you know something important. Maybe you could help investigators solve a mystery. I believe somebody knows something. They just haven't come forward yet.