Volume 5
Louis Perez: Unlucky 13

Volume 5 · Chapter 3

Unlucky 13

Louis Perez, Dorothy Maraglino, Jessica Lopez

Victim: Brittany Killgore

Fallbrook, San Diego County, and near Lake Skinner, Riverside County, California 18 photos

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.

From the book

Read the full story

This case is told in full in True Crime Case Histories, Volume 5 by Jason Neal.

Get Volume 5 on Amazon

Case photographs

18 photos
Unlucky 13
Unlucky 13
Brittany Killgore
Brittany Killgore
Brittany Killgore
Brittany Killgore
Brittany Killgore
Brittany Killgore
Unlucky 13
Unlucky 13
Dorothy Maraglino, Louis Perez, & Jessica Lopez
Dorothy Maraglino, Louis Perez, & Jessica Lopez
Unlucky 13
Unlucky 13
Unlucky 13
Unlucky 13
Unlucky 13
Unlucky 13
Coded Message deciphered by Forensic Document Examiner and the FBI Cryptanalysis Unit Crypto
Coded Message deciphered by Forensic Document Examiner and the FBI Cryptanalysis Unit Crypto
Unlucky 13
Unlucky 13
Unlucky 13
Unlucky 13
Unlucky 13
Unlucky 13
Location where body was found.
Location where body was found.
Unlucky 13
Unlucky 13
Unlucky 13
Unlucky 13
Unlucky 13
Unlucky 13
Unlucky 13
Unlucky 13

Where it happened

Fallbrook, CA
Fallbrook, where Brittany Killgore was picked up · Open in Google Maps

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

More from Volume 5

12 chapters
Larry and Carri Williams: The Homeschoolers

The Homeschoolers

Chapter 1 · Larry and Carri Williams

Larry and Carri Williams of Sedro-Woolley, Washington, were convicted in the 2011 death of their adopted daughter Hana Williams. Case photos.

Peter Madsen: The Submarine Case

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Danish inventor Peter Madsen murdered Swedish journalist Kim Wall aboard his homemade submarine near Copenhagen in August 2017. Case photos.

William Cosden: Divine Justice

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Chapter 4 · William Cosden

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Ed Gingerich: The Amish Killer

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John Famalaro: Cold Storage Killer

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Sally Challen: Coercive Control

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Jack Spillman: The Werewolf Butcher

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Melissa Ann Shepard: The Black Widow

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Brett Ryan: The Crossbow Killer

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Brett Ryan killed his mother Susan and brothers Chris and A.J. with a crossbow in Scarborough, Toronto, in August 2016. Photos from the Ryan case.

Gerald Robinson: Murder in the Sacristy

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Dixie Dyson: Devious Dixie

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About the author

Jason Neal writes the True Crime Case Histories series, which has covered hundreds of real cases from the United States and around the world since 2019. Each volume collects twelve cases, researched from court records, police reports and news coverage. jasonneal.com

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