A wealthy executive is gunned down in his home. His former in-law charged with the murder. But what really made national news was the suspect's defense: he said he was too fat to have killed. But would the argument -- and the science behind it -- sway the jury? Dateline NBC's Dennis Murphy reports.
After losing control at the wheel, a loving mother dies. Her death would shatter what everyone thought was a perfect family life - especially after her husband mysteriously disappears and his double life is exposed.
See it this Friday at 9 p.m. ET, 8 p.m. CT.