What did you think of the case? Should police be allowed to threaten and lie to witnesses during questioning -- telling them they have eyewitnesses to a crime or that someone has confessed? Do you think police lies and threats of prison can cause a person to falsely accuse another? Share your thoughts by leaving a comment below.

The full report will be viewable online tomorrow, Saturday.

On Sunday, May 30, 7 p.m./6C, Mike Taibbi reports on "The Many Faces of Clark Rockefeller," the man who caused an international manhunt after being accused of abducting his own daughter and was revealed to be a fake Rockefeller.

Discuss the case by leaving a comment. Read a transcript here. The full hour will not be available but you can watch Web-exclusive clips here.

On Sunday, May 30, 7 p.m./6C, Matt Lauer continues his reporting on autism with an exclusive interview with Dr. Andrew Wakefield, the controversial British doctor who said he found a possible link between autism and one childhood vaccine, who made headlines this week after being stripped of his license to practice medicine in his own country.

Find more links to autism research here, including official statements from the CDC and the American Academy of Pediatrics.

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It looked like the perfect crime -- a puzzling killing that went unsolved for years, with no eyewitnesses, and no solid evidence. It involved a devoted husband and father who was shot to death in his own home. His wife, Jennifer Shanbrom, was shaken -- it seemed she narrowly escaped the gunman herself. But shortly after the funeral, the questions started: Was this widow grieving... or celebrating? Keith Morrison reports on "The Case of the Merry Widow."

Read the transcript of the report here. Video of this report will not be available on the Web.

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Julia Dawson was in a troubled marriage finally finds the courage to get out. And then, she disappears. It was a crime that might have ended up forever lost in a police file... if not for a chief who used his head, and his heart. Dennis Murphy reports on "The Case of the Missing Mom."

Watch the video or read the transcript here.

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