Spencer Monnett

Spencer Monnett was arrested on July 28, 2018 and charged in the April 17, 2018 sexual assault of 79-year-old Carla Brooks in St. George, Utah. Monnett broke into Brooks’ home through a screen door, stuffed a rag into her mouth and sexually assaulted and beat her as she fought back. Brooks has been publicly identified at her own request; she now advocates on behalf of sexual assault survivors and has pushed for funding to test backlogged sexual assault kits.

A DNA profile was developed from Brooks’ sexual assault kit but produced no matches in law enforcement databases. The FGG investigation was undertaken by Parabon Nanolabs.

Monnett confessed to the crime and he has pled guilty. Brooks testified at his sentencing hearing, at which she forgave him and urged him to turn his life around. Brooks went on to spend the last years of her life advocating for victims of sexual assault. She passed away on October 26, 2022 in South Jordan, Utah.


Aradillas, Elaine. “How an Elderly Sex Assault Survivor Became Activist for Testing Thousands of Backlogged Rape Kits.” People, March 25, 2019. Accessed December 26, 2020. https://people.com/crime/carla-brooks-sex-assault-survivor-activist-testing-rape-kits/#:~:text=In%20February%2C%2032%2Dyear%2D,to%20burglary%20of%20a%20dwelling

DeMille, David. “Arrest Made in Home Invasion rape of Elderly St. George Woman.” The Spectrum, July 28, 2018. Accessed December 26, 2020. https://www.thespectrum.com/story/news/2018/07/28/79-year-old-woman-raped-assaulted-her-st-george-home/855583002/.

Dutta, Anisha. “Where is Spencer Glen Monnett Today?” The Cinemaholic, June 30, 2020. Accessed December 26, 2020. https://www.thecinemaholic.com/spencer-glen-monnett/.

Francis, Nathan. “Carla Brooks Gives Surprising Message at Sentencing for Rapist, Spencer Glen Monnett: I Forgive My Attacker.” Inquisitr, June 30, 2020. Accessed December 26, 2020. https://www.inquisitr.com/6140053/carla-brooks-forgive-spencer-monnett/.

Obituaries. “Carla Irene Hoyt Brooks.” St. George News, November 3, 2022. Accessed January 29, 2023. https://www.stgeorgeutah.com/news/archive/2022/11/03/carla-irene-hoyt-brooks/#.Y9cPfy-97BJ.


First Name Spencer
Last Name Monnett
Other Names
Victims 1 (Details)
IGG Started nd
Case Cleared 2018-07-28
IGG Org Parabon


Case ID Name Age Case Opened Location Investigating Org Most Serious Charge Disposition Court
1099 Carla Brooks 79 2018-04-17 St. George, UT St. George PD All sexual offenses, including rape, sexual assault, and child molestation Guilty plea entered by defendant Washington CO DIST CT

Last updated: February 9, 2024

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Case data and narrative licensed under CC BY 4.0: Dowdeswell, Tracey (2023), “Forensic Genetic Genealogy Project v. 2022”, Mendeley Data, V1, doi: 10.17632/jcycgvhm96.1. All other content, including photos, have been added.