The Detective and the Chewing Gum Sting

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.

Two years after Mamta Kafle Bhatt vanished from her Virginia home, her husband, Naresh Bhatt, stands trial for her murder. "48 Hours" correspondent Anne-Marie Green speaks with WUSA9 reporter Katie Lusso about the prosecution's focus on Naresh's conflicting statements, the defense's strategy, and the domestic violence allegations at the center of this case.

Scott Scurlock had a colorful criminal career that started with dealing drugs and ended with robbing banks. He was known as “Hollywood” because of his flamboyant style and use of makeup, wigs and fake chins to disguise himself. He eluded capture for four years while successfully robbing 18 banks. "48 Hours" correspondent Susan Spencer reports. This classic "48 Hours" episode last aired on 2/18/2002. Watch all-new episodes of “48 Hours” on Saturdays and stream on demand on Paramount+.

In October 2013, Kelly Dwyer disappeared after a night out in Milwaukee. She was last seen entering her boyfriend's apartment, who told investigators that he and Kelly engaged in drug use, sex, and that she left his apartment the next morning. But security footage showed a different story. "48 Hours" correspondent Peter Van Sant reports. This classic "48 Hours" episode last aired on 5/16/2020. Watch all-new episodes of “48 Hours” on Saturdays and stream on demand on Paramount+.

In 2013, music pastor Caleb Flynn appeared on "American Idol", praising the wife he said he loved more than anything. Thirteen years later, he was sentenced to life without parole for her murder. "48 Hours" correspondent Anne-Marie Green and "48 Hours" consultant and investigator Herman Weisberg walk through the staged home invasion, his affair, and the text messages that helped convict him.

Sylvie Cachay was an up-and-coming fashion designer. In 2010, she was found dead and partially clothed in an overflowing tub at the Soho House in New York City. Police learned Sylvie had checked into the hotel with her boyfriend, Nicholas Brooks. Although there was an empty bottle of prescription pills nearby, the on-scene medical examiner found marks on Sylvie’s neck that suggested strangulation and the investigation quickly turned to Brooks. "48 Hours" correspondent Troy Roberts reports. This classic "48 Hours" episode last aired on 8/1/2026. Watch all-new episodes of “48 Hours” on Saturdays and stream on demand on Paramount+.