Home / Arts and Entertainment / Family of Four Vanishes Without a Trace: The Baffling McStay Mystery
Family of Four Vanishes Without a Trace: The Baffling McStay Mystery
3 Oct
Summary
- Family of four from San Diego mysteriously disappears
- Investigators find abandoned home with pets, rotting food, and scattered clothes
- Case has garnered international attention with no leads for years
On October 4th, 2025, a new episode of the award-winning documentary news series "20/20" will shed light on one of the most perplexing missing persons cases in recent memory - the disappearance of the McStay family.
In 2010, Joseph McStay, his wife Summer, and their two young sons, Gianni and Joseph Jr., seemingly vanished from their San Diego County home. When investigators searched the property, they found the family's two beloved dogs left unattended outside, rotting food on the kitchen counter, and clothes strewn across the floor, but no sign of the McStays.
The case soon gained international attention when the family's abandoned car was discovered near the Mexican border. Despite extensive searches and investigations, no new leads or information emerged on the whereabouts of the family of four. For years, the McStay disappearance has baffled both law enforcement and the public.
Now, in this two-hour special, ABC News' chief national correspondent Matt Gutman will present new interviews and evidence that may finally uncover the truth behind this California mystery. Viewers will be captivated by the chilling details and the relentless pursuit to solve the case that has remained unsolved for over a decade.
