Get "On the Record" weeknights at 10 p.m. ET

Believe it or not, there are more than 100,000 Americans missing today.

They come from all walks of life and the circumstances surrounding their disappearances are vastly different. And while most families will never know what happened to their loved ones, many of the mysteries we profiled ended in tragedy.

In this special edition of "On the Record: Missing Persons Files," we reopen some of the cases that gripped the nation's headlines:

We'll revisit Lori Hacking's (search) disappearance and murder.

A hairdresser in Georgia disappears from her salon. What ominous clues were left behind in the parking lot?

Plus, a Wisconsin college student's disappearance triggers a massive manhunt. But was it all a hoax?

And, a four-year-old girl vanishes from her grandmother's bed. Now, a high tech company is giving her family new hope.

About the Show

"On the Record with Greta Van Susteren" is a one-hour news and analysis program involving a diverse component of newsmaker interviews anchored by distinguished journalist and renowned trial lawyer Greta Van Susteren.

"On the Record" capitalizes on Van Susteren's experience, fairness and inquisitive manner in exploring the issues of the day with her trademark hard hitting and provocative questions.

Innovative segments and its no nonsense attitude toward the news have enabled "On the Record” to attract a wide range of diverse guests.

According to Van Susteren, "'On the Record' is an informative and thought-provoking hour that's unpredictable and lends a fresh perspective to the issues we're now discovering in this new hour order. Each night I try to find out the answer to the question, 'Why?'"