
Volume 5 · Chapter 3
Unlucky 13
Louis Perez, Dorothy Maraglino, Jessica Lopez
Victim: Brittany Killgore
Case at a glance
- When
- April 13, 2012
- Where
- Fallbrook, San Diego County, and near Lake Skinner, Riverside County, California
- Perpetrator
- Louis Ray Perez, Dorothy Maraglino, and Jessica Lynn Lopez
- Victim
- Brittany Killgore
- Outcome
- All three convicted of first-degree murder in 2015 and sentenced to life without parole; Lopez’s bid to vacate her conviction was denied in 2023 and upheld on appeal in 2025
The case
Brittany Killgore was 22 and living in Fallbrook, California, in the spring of 2012. Her husband, a Marine, was deployed, and their marriage was ending. Louis Perez, a Marine staff sergeant at Camp Pendleton, shared a Fallbrook house with his girlfriend Dorothy Maraglino and a roommate, Jessica Lopez. The three lived a BDSM lifestyle.
On April 13, 2012, Perez picked Brittany up at her apartment for what she believed was a dinner cruise in San Diego. About ten minutes later she texted a friend the word “Help.” Perez was arrested within days on an unrelated weapons charge while detectives searched for her. On April 17, her body was found near Lake Skinner in Riverside County. That same day, Lopez was found injured at a hotel on Rosecrans Street in San Diego with a written confession claiming she had acted alone. Prosecutors argued the letter was false and that all three had planned the abduction.
In 2015, Perez, Maraglino, and Lopez were each convicted of first-degree murder with special circumstances, along with kidnapping and related charges, and sentenced to life without parole. A state appeals court reviewed the convictions in 2017, and courts later refused Lopez’s request to have her murder conviction thrown out under a revised California law.
Read the full story
This case is told in full in True Crime Case Histories, Volume 5 by Jason Neal.
Get Volume 5 on AmazonCase photographs
18 photos

















Where it happened
Why this case
“The confession letter is the part of this case I find most revealing. It was written to make one person carry the whole weight, and for a short time it might have worked. Detectives read it closely, found where it didn’t fit the evidence, and kept going. Brittany’s one-word text to a friend made sure they knew where to start.”
— Jason Neal, author of True Crime Case Histories










