When Stephen Spielberg released his iconic film Jaws in the summer of 1975, he not only kicked off the phenomenon of the summer blockbuster, but also reignited the public’s fascination with and fear of shark attacks. Although based on a book of the same name, that novel was itself heavily influenced on several real-life events from the past, including one particular summer on the Jersey Shore.

In the early twentieth-century, most Americans didn’t think much about sharks or the other potentially dangerous fish and animals that lived in the ocean. In fact, the majority of Americans don’t live in coastal areas and probably didn’t know there were differences between species. That all changed in the summer of 1916, when a loan shark killed four people and critically injured one person in the waters along the Jersey Shore. More than merely accidental bites, the attacks seemed almost intentional, leading to the widespread belief that a man-eater was stalking the waters of the northeastern state.

In the century that has passed since, the Jersey Shore shark attacks have fueled Americans imaginations and nightmares, leading to widely celebrated novels and films about sharks, but also contributing to serious misunderstandings about sharks and their behavior, often with terrible consequences.

Recommendations in this Episode

Listen to Laughing in the Dark an 'Are You Afraid of the Dark' Rewatch Podcast with @mikie_sirois & Dave (@thatqueerwolf) (in addition to Bryan and Aileen!)

Grab SIGNED EDITIONS of The Butcher Legacy from Barnes & Noble before they run out!

References

Asbury Park Press. 1916. "Bathers need have no fear of sharks." Asbury Park Press, July 5: 11.

—. 1916. "Governor urges safeguards such as Asbury Park has." Asbury Park Press, July 13: 1.

—. 1916. "Nets and armed motorboat patrol to protect bathers." Asbury Park Press, July 7: 1.

—. 1916. "Shak driven from city bathing ground." Asbury Park Press, July 8: 1.

Capuzzo, Micahel. 2001. Close to Shore: A True Story of Terror in An Age of Innocence. New York, NY: Broadway Books.

Central New Jersey Home News. 1916. "Man and two boys fall victims to new raid of shark in Matawan Creek." Central New Jersey Home News, July 13: 1.

Florida Museum of Natural History. 2024. Yearly Worldwide Shark Attack Summary. Accessed July 30, 2025. https://www.floridamuseum.ufl.edu/shark-attacks/yearly-worldwide-summary/.

Morning Call. 14916. "Swimmer mangled by shark at sea dies in two hours." Morning Call (Paterson, NJ), July 4: 7.

New York Times. 1916. "Human bones found in shark's stomach." New York Times, July 16: 5.

—. 1916. "Many hunt sharks." New York Times, July 9: 3.

—. 1916. "Many see sharks, but all get away." New York Times, July 14: 1.

—. 1916. "Shark guards out at beach resorts." New York Times, July 8: 18.

The Times. 1916. "Creek yields body of boy shark slew." The Times (Trenton, NJ), July 14: 1.

Cowritten by Alaina Urquhart, Ash Kelley & Dave White (Since 10/2022)

Produced & Edited by Mikie Sirois (Since 2023)

Research by Dave White (Since 10/2022), Alaina Urquhart & Ash Kelley

Listener Correspondence & Collaboration by Debra Lally

Listener Tale Video Edited by Aidan McElman (Since 6/2025)

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

In November 1958, Frank Duncan’s pregnant wife, Olga Kupczyk, disappeared without a trace from their Santa Barbara home after enduring months of abusive treatment from her mother-in-law. A short time later, Frank’s marriage was inexplicably annulled after his mother, posing as Olga, showed up at the local courthouse with a man she’d hired to pose as her son, Frank.

One month later, in mid-December, investigators in the small coastal town of Carpinteria, California, were directed to the location of Olga’s body in a shallow grave, after one of her killers confessed to kidnapping and murdering her the previous month. The arrest of Augustine Baldonado and his accomplice, Luis Moya, solved the mystery of what happened to Olga, but when it came to the motive for the murder, the truth was more shocking than anyone had expected.

Associated Press. 1959. "Mrs. Duncan shouts 'liar' at friend in court." Modesto Bee, March 1: 2.

Blake, Gene. 1958. "Body of missing bride unearthed." Los Angeles Times, December 22: 1.

—. 1959. "Find Mrs. Duncan guilty of murder." Los Angeles Times, March 17: 1.

—. 1959. "Mrs. Duncan held sane, faces death." Los Angeles Times, March 25: 1.

—. 1959. "Mrs. Duncan tried to hire her to kill, carhop says." Los Angeles Times, February 25: 2.

—. 1959. "Mrs. Duncan's son weeps when death story is told." Los Angeles Times, February 27: 2.

Hertel, Howard, and Paul Weeks. 1962. "Mrs. Duncan dies with 2 conspirators." Los Angeles Times, August 9: 1.

Holt, Bob. 1959. "Frank Duncan in court outburst as D.A. Gustafson questions mother." Ventura County Star, March 5: 1.

—. 1959. "Jury out 4 hours, 51 min. debating fateful verdict in murder-for-hire case." Ventura County Star, March 17: 1.

—. 1959. "Mrs. Duncan testifies in own defense; admits 'plot' to break up marriage." Ventura County Star, March 4: 1.

Larkin, Deborah Holt. 2022. A Lovely Girl: The Tragedy of Olga Duncan and the Trial of One of California's Most Notorious Killers. New York, NY: Simon and Schuster.

Los Angeles Times. 1958. "Body of missing wife pointed out." Los Angeles Times, December 22: 1.

Martinez, Arlene. 2013. "Love, scandal and murder: Ventura County case drew national attention." Ventura County Star, June 30: 2013.

Renner, Joan. 2013. "Mother-in-law knows murdwer: The tragic death of Olga Kupczyk." Los Angeles Magazine, June 17.

The People of California v. Elizabeth Ann Duncan. 1960. 6490 (California Appeals Court, March 11).

Ventura County Star. 1958. "Grand jury set for murder case." Ventura County Star, December 23: 1.

Welsh, Nick. 2022. Elizabeth Duncan: The Last Woman Executed in California. October 13. Accessed November 11, 2025. https://www.independent.com/2022/10/12/elizabeth-duncan-last-woman-executed-california-history/.

Williams, Brad. 1958. "Mother-in-law in jail on charge of fake annulment." Los Angeles Times, December 16: 1.

Cowritten by Alaina Urquhart, Ash Kelley & Dave White (Since 10/2022)

Produced & Edited by Mikie Sirois (Since 2023)

Research by Dave White (Since 10/2022), Alaina Urquhart & Ash Kelley

Listener Correspondence & Collaboration by Debra Lally

Listener Tale Video Edited by Aidan McElman (Since 6/2025)

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

In November 1958, Frank Duncan’s pregnant wife, Olga Kupczyk, disappeared without a trace from their Santa Barbara home after enduring months of abusive treatment from her mother-in-law. A short time later, Frank’s marriage was inexplicably annulled after his mother, posing as Olga, showed up at the local courthouse with a man she’d hired to pose as her son, Frank.

One month later, in mid-December, investigators in the small coastal town of Carpinteria, California, were directed to the location of Olga’s body in a shallow grave, after one of her killers confessed to kidnapping and murdering her the previous month. The arrest of Augustine Baldonado and his accomplice, Luis Moya, solved the mystery of what happened to Olga, but when it came to the motive for the murder, the truth was more shocking than anyone had expected.

Grab SIGNED EDITIONS of The Butcher Legacy from Barnes & Noble before they run out!

Cowritten by Alaina Urquhart, Ash Kelley & Dave White (Since 10/2022)

Produced & Edited by Mikie Sirois (Since 2023)

Research by Dave White (Since 10/2022), Alaina Urquhart & Ash Kelley

Listener Correspondence & Collaboration by Debra Lally

Listener Tale Video Edited by Aidan McElman (Since 6/2025)

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.