Chasing Catherine Shelton (Part 1)

House of Horrors or House of Mirrors? A routine traffic stop led investigators to the Philadelphia property now dubbed by neighbors as a "House of Horrors."  "48 Hours" correspondent Anne-Marie Green and "48 Hours" consultant and investigator Herman Weisberg break down the conflicting and disturbing evidence authorities uncovered at the home of the late Raymond C. Horsch, including clues that families hope will shed new light on the disappearance of his ex-wife, Amy McHale, and six other missing women.

Between 1996 and 1998, the small town of Columbus, Mississippi faced five unsolved murders of elderly residents. The victims were killed in their homes, and similarities among the crimes led investigators to suspect a possible serial killer. As fear spread throughout the community, police faced mounting pressure to identify the perpetrator, while residents questioned whether authorities were overlooking important evidence or protecting someone within the town. "48 Hours" correspondent Harold Dow reports. This classic "48 Hours" episode last aired on 7/16/2001. Watch all-new episodes of “48 Hours” on Saturdays and stream on demand on Paramount+.

Todd Winkler admitted to fatally stabbing his wife with scissors, but he claimed it was self-defense. Winkler’s mental health became a focal point at trial when he seemed to have a psychotic outburst. Prosecutors suggested he was faking. Which version of Winkler would the jury believe? "48 Hours" correspondent Richard Schlesinger reports. This classic "48 Hours" episode last aired on 12/12/2015. Watch all-new episodes of “48 Hours” on Saturdays and stream on demand on Paramount+.

48 Hours correspondents Natalie Morales and Anne-Marie Green discuss the 2022 murder of Savannah Tolbert in Huntsville, Alabama. She was found dead in the passenger seat of her husband’s car with a gun in her hand, and it initially appeared as if she had killed herself. They discuss why Savannah’s sisters were convinced she had been murdered, how investigators tracked down surveillance footage that showed Savannah and her husband, David Tolbert, were the only people in the car around the time of the shooting, and that gunshot residue was found on David’s hands, but not Savannah’s.

Multiple surveillance cameras capture the final moments of what happened before a mysterious figure ends a woman's life.

A televised dispute over an engagement ring turned into one of Florida's most haunting missing persons cases. This week, CBS News correspondents Shanelle Kaul and Cristian Benavides examine the recent arrest of Michelle Parker's ex-fiancé, Dale Smith Jr., 15 years after her disappearance, and hear from the family members who never stopped fighting for answers.

In 2012, Lizzi Marriott was a 19-year-old New Hampshire student when she disappeared after visiting her co-worker, Kat McDonough, and Kat's boyfriend, Seth Mazzaglia, in their apartment. Kat initially claimed Lizzi's death was accidental, but later testified that Seth strangled Lizzi with a rope after she rejected his sexual advances. "48 Hours" correspondent Troy Roberts reports. This classic "48 Hours" episode last aired on 9/19/2015. Watch all-new episodes of “48 Hours” on Saturdays and stream on demand on Paramount+.

On August 16, 2009, 9-1-1 operators received two separate calls from the same house. A husband and wife had each dialed in, claiming their partner had stabbed them. When the husband died of his wounds, investigators were left wondering if the killing was self-defense or a cold-blooded murder. "48 Hours" correspondent Peter Van Sant reports. This classic "48 Hours" episode last aired on 9/3/2011. Watch all-new episodes of “48 Hours” on Saturdays and stream on demand on Paramount+.

In the season premiere of “48 Hours Post Mortem”, correspondents Anne-Marie Green and Peter Van Sant discuss the brilliant undercover operation that used chewing gum to catch a killer in two cold cases. They reveal how Detective Susan Logothetti and her colleagues developed the ruse, what it was like to confront the murderer, Mitchell Gaff, and why he spent over two decades in a treatment center for sexually violent predators.

How a clever detective caught a killer with a stick of gum. Peter Van Sant reports.