Mike Taibbi reports on Clark Rockefeller who made headlines in 2008 when he was arrested for the parental kidnapping of his daughter who was living in Boston. Police quickly figured out he was a fraud who had conned not only high society, but his wife of twelve years.

It started back in the 1980s while he was living in San Marino, California - Rockefeller had pretended to be Christopher Chichester, thirteenth baronet. This past summer, Rockefeller, who was charged with felony murder for the death of his landlady’s son John Sohus, pled not guilty. Sohus and his wife Linda had gone missing in 1985.

Now, with innovative forensic techniques, new interviews and old witnesses, investigators believe they have enough to build their case against the fake Rockefeller. In fact, this week a judge is holding a hearing to determine whether the prosecution’s case is strong enough to justify putting him on trial.

Buried Secrets airs Friday, January 27th, 2012, at 10pm/9c on Dateline NBC.

When a young woman was found dead in her bathtub, suspicion focused on her husband of 4 months. Did she accidentally drown or was it something more sinister? It took three trials to find out. Dennis Murphy revisits this puzzling case.

The two-hour Dateline update of The Bathtub Mystery airs Sunday, January 22nd, at 7pm/6c.

When a woman is stabbed in a parking lot in Century City, her estranged husband is an obvious suspect. But – surveillance video proves he was not at the scene of the crime. Who killed her and why? Dateline NBC's Josh Mankiewicz reports The Goldfinger Mystery on Friday, January 20th, at 10pm/9c.

Share your thoughts or questions with us on Facebook or Twitter during tomorrow night's show:

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Joran van der Sloot pleaded guilty to murder Wednesday in the 2010 killing of a 21-year-old Peruvian woman.

Van der Sloot, who was arrested but not charged in the 2005 disappearance of 19-year-old Natalee Holloway on the Dutch Caribbean island of Aruba, admitted killing Stephany Flores in his Lima hotel room on May 30, 2010, after the two left a casino together.

"Yes, I want to plead guilty. I wanted from the first moment to confess sincerely," he told the court. "I truly am sorry for this act. I feel very bad."

The three-judge panel said sentencing would be Friday. Van der Sloot faces up to 30 years in prison for slaying Flores, though the guilty verdict was aimed at winning a lighter sentence.

Flores was killed five years to the day after the disappearance of Holloway, an Alabama woman who was celebrating her high school graduation in Aruba and was seen leaving a nightclub with van der Sloot. Her body has never been found.

Van der Sloot was arrested twice in the Holloway case but he was never charged due to a lack of evidence. Holloway's family has criticized Dutch authorities for not making more progress in the case.

Watch the previous Dateline report Behind Bars: Joran van der Sloot from Friday, September 10th, 2010. 

Keith Morrison reports on a cold case of an 18 year old college freshman who was raped and murdered in an Anchorage state park in 1994. Even though the case went cold, her mother continued the crusade to find the killer.

Justice for Bonnie airs Friday, January 13th, 2012 at 10pm/9c on Dateline NBC.

In "I Got This: How I Changed My Ways and Lost What Weighed Me Down," Jennifer Hudson recounts her journey from her humble beginnings to becoming an international, award-winning superstar. Here's an excerpt:

Introduction

Jennifer! Over here!”
“Jennifer, look this way.”
“Jennifer, Jennifer.”
“Over here!”
“No, over here!”
“Jennifer, turn to the right!”

I always dreamed of someday walking the red carpet in Hollywood. Let’s be real. It’s fun. Everyone there is shouting out your name just to get a glimpse of what you’re wearing. The press asks you to pose, wave, and smile as they snap photo after photo, with flashes popping so bright you can hardly see. It’s a moment in time a girl feels truly beautiful. And on this particular night, I thought I was looking fierce.

It was one of my first red-carpet events. I was a contestant on American Idol, and was living my dream of singing for millions of people on the highest-rated show on television. I was a long way from singing in church and talent shows on the South Side of Chicago. I was excited, taking in the red-carpet finery for the first time. I felt on top of the world.

“Jennifer, are you insecure about being a ‘big girl’ in Hollywood?”

That is, until that question.

Oh, hell no. She didn’t just ask me that.

But she did.

It took me a minute to figure out who the reporter was actually talking to.

Who, me? I thought. Insecure?

Surely, she wasn’t addressing me that way. I had the height of a supermodel, breasts that were naturally big and real, and a God-given shape. Why would I feel insecure about that? I looked around hoping to spot another Jennifer— an insecure “big” girl, but there wasn’t anyone else there.

Nope.

Just me.

Like Randy Jackson said to me after my American Idol audition:

“Welcome to Hollywood, girl!”

PROLOGUE of I Got This by Jennifer Hudson © 2012. Reprinted with permission of Dutton, a member of Penguin Group U.S.A.

Learn more about the Julian D. King Gift Foundation, as part of Dateline NBC's interivew with singer and actress Jennifer Hudson from Sunday, January 8th, 2012.

 Visit the foundation's Facebook page or website for more information about its mission:

The mission of the Julian D. King Gift Foundation is to provide stability and positive experiences for children of all backgrounds so that they may grow to become productive, confident and happy adults, able to be positive influences on their communities. The work of the Foundation will be carried out through fund raising events, the content and proceeds of which will be used to support and encourage the positive development of children.

In an exclusive interview, Lester Holt interviews Oscar and Grammy winner Jennifer Hudson whose new book I Got This, hits shelves January 10. The two talk about her weight loss and healthy living tips as they cook together; Hudson also discloses details of her upcoming nuptials, the Julian D. King Gift Foundation she started in her nephew’s honor, and more.

Also on Dateline Sunday, secrets in a small town can only stay hidden for so long. Keith Morrison reports on the story of Teresa Mayfield, a mother of three who was found dead in her car off a lonely dirt road. Two years after her death there was still no arrest in the case. But then,  strange sequence of events led investigators to an unlikely suspect.

Join us for a two-hour Dateline Sunday beginning at 7pm/6c.

George Smith and Jennifer Hagel went on a cruise for their honeymoon and when George went overboard, they had only been married for 10 days. Dennis Murphy tells the story of an active, ongoing investigation whereby FBI agents won’t talk on the record. However, the cruise line, Royal Caribbean has conducted its own internal investigation and “Dateline” has the exclusive update about what happened aboard the ship in the early hours of July 5, 2005.

Overboard airs Friday, January 6, at 10pm/9c.