Marti Hill did not show up for work one day in September 2010, and her co-workers grew concerned. Police were summoned after Hill’s boss drove to her home and found her car still in the driveway. She was found by police, at the bottom of the basement steps, barely breathing and covered in blood. Hill’s mother alerted police towards Brian Pennington, a construction worker whom both she and Marti had hired to do work. This classic "48 Hours" episode last aired on 12/28/2013. Watch all-new episodes of “48 Hours” on Saturdays, and stream on demand on Paramount+.

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On September 4, 2006, Kathy Wangler, wife of anesthesiologist Dr. Mark Wangler, died from carbon monoxide poisoning in their home in Lima, Ohio. Their thirty-year marriage had been falling apart; three years later, in 2009, investigators came to the conclusion that Dr. Wangler had murdered his wife. Kathy’s mother and sisters felt that since Mark was familiar with gasses that he was able to plan and execute the perfect murder. Mark was arrested and the case was brought to trial. “48 Hours" correspondent Peter Van Sant reports. This classic "48 Hours" episode last aired on 6/16/2012. Watch all-new episodes of “48 Hours” on Saturdays, and stream on demand on Paramount+.

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A report on the September 3, 2006 disappearance of Nina Reiser, a Russian doctor who had married Hans Reiser. The couple had two children, but their marriage began to fall apart and Nina began an affair with Sean Sturgeon, Hans’ best friend. Embroiled in a nasty custody fight, Nina dropped off the children at Hans’ house on Labor Day weekend and then mysteriously vanished. “48 Hours" correspondent Maureen Maher reports. This classic "48 Hours" episode last aired on 7/18/2009. Watch all-new episodes of “48 Hours” on Saturdays, and stream on demand on Paramount+.

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