
Volume 10 · Chapter 5
The Girl Scout
David Alan Westerfield
Victim: Danielle van Dam
Case at a glance
- When
- February 1–2, 2002
- Where
- Sabre Springs, San Diego, and Dehesa, California
- Perpetrator
- David Alan Westerfield
- Victim
- Danielle van Dam
- Outcome
- Convicted in 2002 of murder, kidnapping and possession of child pornography and sentenced to death in 2003; sentence affirmed in 2019, no execution under California’s moratorium
The case
Danielle van Dam was seven years old and lived with her family in Sabre Springs, a neighborhood in San Diego, California. A couple of days before she vanished, she and her mother went door to door selling Girl Scout cookies and stopped at the house of David Westerfield, a 49-year-old design engineer who lived nearby.
On the morning of February 2, 2002, Danielle’s parents found her bed empty. That weekend Westerfield had taken his motorhome on a rambling trip to the coast and the desert while a large volunteer search got under way. Investigators found Danielle’s blood on his jacket and in the motorhome, along with her fingerprint and fibers and hair that matched her. He was arrested on February 22, and five days later searchers found Danielle’s body near Dehesa, east of the city.
In August 2002 a jury convicted Westerfield of murder, kidnapping and possessing child pornography. The same jury chose death, and a judge formally imposed the sentence in January 2003. The California Supreme Court affirmed the judgment on February 4, 2019. Five weeks later Governor Gavin Newsom placed a moratorium on executions, and in 2024 Westerfield was reported to have been moved off death row as the state dismantled it.
Read the full story
This case is told in full in True Crime Case Histories, Volume 10 by Jason Neal.
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Where it happened
Why this case
“This case changed how a lot of parents thought about the people next door. Westerfield was not a stranger; Danielle had stood on his doorstep days earlier. The volunteers also deserve credit. Their search is what found her, and it gave investigators the chance to test the evidence against him in court.”
— Jason Neal, author of True Crime Case Histories










