Prosecutor’s New Book Reveals How Ventura Helped Crack the Golden State Killer Case


A 1980 double homicide in Ventura provided the DNA evidence that helped end one of California’s most terrifying serial crime sprees.
Here’s the rundown 👇
Read this especially if you follow true crime, forensic breakthroughs, or want an insider view on how prosecutors work together across counties to close decades-old cases.
📍 What Just Happened
A new book by Sacramento County District Attorney Thien Ho sheds light on the behind-the-scenes efforts that led to the capture of Joseph DeAngelo, known as the Golden State Killer. Among the pivotal moments: a preserved DNA kit from a 1980 double murder in Ventura that ultimately helped identify DeAngelo through genetic genealogy.
Ho’s book, titled "The People Vs. The Golden State Killer," details legal strategy, victim stories, and how Ventura’s evidence became the key that solved a massive cold case.
📋 Key Details
Crime: Joseph DeAngelo committed murders, rapes and burglaries from 1974 to 1986
Ventura Case: Double homicide of Lyman and Charlene Smith in 1980
Breakthrough: Medical examiner saved duplicate DNA kits which were rediscovered decades later
DNA Match: Used for genealogy matching and led to DeAngelo’s arrest in 2018
Trial Outcome: DeAngelo pleaded guilty to 13 murders and 13 kidnappings in 2020
Book Author: Thien Ho, lead prosecutor in the case and now a candidate for Congress
Perspective: Focus on victims, prosecutors and long-term law enforcement efforts
Community Impact: Ho recounts how the crimes transformed neighborhoods and drove a generation of officers to keep investigating
🔍 Why This Matters
Highlights Ventura’s key contribution to solving one of America’s most chilling serial crime cases
Demonstrates how long-term preservation of evidence can lead to justice even decades later
Underscores the importance of cross-county collaboration in massive cases
Offers a rare glimpse into prosecutorial decisions, victim support, and the ethical questions around plea bargains and the death penalty
📚 A Story Within a Story
Thien Ho, a refugee from Vietnam, also shares his personal journey in the book, from fleeing Saigon to becoming a top prosecutor and now a published author and political candidate. His story adds another layer of resilience and service to the pursuit of justice.
🧠 The Bottom Line
This case proves that persistence, technology, and teamwork can solve even the coldest cases. Ventura’s careful forensic work helped bring peace to victims across California, showing the value of every piece of evidence and every person who fights for the truth.