Texas Rangers, Local Police Help Serve Justice to Serial Child Rapist

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mugshot of David Mundt

DPS SAKI Program Links Longview Man to Cold Cases in Texas, Arizona
AUSTIN – The man responsible for sex crimes against two young girls in Texas and Arizona will now spend the rest of his life behind bars. Nearly 40 years after the first of the two crimes was committed, a Rusk Co. Grand Jury gave David Roy Mundt, 62, of Longview, Texas, that sentence last week.

Back on Oct. 28, 1992, a male suspect—now identified as Mundt—broke into a home in Rusk Co. and dragged a 7-year-old girl from her bed, sexually assaulting her in the backyard of the residence before fleeing. DNA collected during the investigation was submitted to the Combined DNA Index System (CODIS)—a national database to check for possible DNA matches between arrestees and unsolved cases nationwide—through the Texas Department of Public Safety’s (DPS) Crime Laboratory Division. Despite the Henderson Police Department’s continued investigation, a suspect was never identified, and no arrest was ever made.

Then, in December 2022, the DPS Crime Laboratory in Garland notified the Texas Rangers of a possible DNA match between the 1992 Texas case and a similar kidnapping and child sexual assault cold case from 1986 in Phoenix, Ariz. The Texas Rangers began coordinating with the Phoenix Police Department and determined DNA samples from the 1986 case were eligible for Advanced DNA testing and genealogy research through Bode Technologies.

On June 15, 2024, that testing and research identified two brothers as possible suspects. The first brother was eventually ruled out because his DNA was already in the CODIS database and would have previously produced a positive match. Investigators then obtained a DNA sample from the second brother, David Roy Mundt, for testing and comparison through DPS’ Sexual Assault Kit Initiative (SAKI) program. The program is funded by the Department of Justice/Bureau of Justice Assistance (DOJ/BJA), which provides investigative funding for agencies across the United States to further unsolved sexual assaults and sexually related homicides, aiming to bring justice to the victims and their families.

Using SAKI grant funds, the sample collected from David Roy Mundt was sent to Bode Technologies for expedited DNA testing, which gave a positive match. On Aug. 7, 2024, the Texas Rangers, Texas Highway Patrol and Longview Police Department arrested Mundt at his home in Gregg Co., Texas.

In August 2024, Mundt was indicted by a Rusk Co. grand jury on two counts of aggravated sexual assault of a child in the 1992 Texas case, and on April 25, 2025, he was convicted and sentenced to two consecutive life terms in prison.

Cases like these highlight the importance of collaborative investigative work between the Texas Rangers and our partner law enforcement agencies to bring justice and closure to victims and their families in unsolved crimes. The department would like to specifically thank the Henderson Police Department, Phoenix Police Department, Longview Police Department, DPS’ Crime Laboratory in Garland and Bode Technologies for their dedication that ultimately led to the identification and arrest of the suspect.

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Kristin Barclay
Kristin Barclay graduated from the University of South Carolina with a major in Journalism and Advertising. Throughout her career, Kristin has demonstrated a passion for storytelling and a commitment to providing accurate, timely, and informative news coverage. She has a deep understanding of the issues and concerns facing local communities and has earned a reputation as a trusted source for reliable news and information. In addition to her work as an editor and journalist, Kristin is also a skilled writer and has written articles on a wide range of topics, including politics, business, education, and culture. She has a keen eye for detail and a talent for crafting compelling stories that engage and inform readers. Kristin is also an active member of the community and has volunteered her time and resources to numerous organizations and causes. She believes in the importance of giving back and making a positive impact on the world around us. In addition to her professional accomplishments, Kristin Barclay is also a passionate advocate for local journalism and the role it plays in keeping communities informed and engaged. She believes strongly in the importance of supporting local news outlets and is dedicated to ensuring that quality journalism remains a vital part of our society. Outside of work, Kristin enjoys traveling both for business and pleasure. She loves exploring new places, meeting new people, and experiencing different cultures. Whether she's on a business trip or a vacation, Kristin is always eager to discover what makes each place unique and special. Kristin's passions include boots, bourbon, dogs and college football. She is a self-proclaimed boot aficionado and has an impressive collection of cowboy boots that she wears with pride. She also enjoys sipping on a good bourbon and spending time with her husband and beloved border collies. Last but certainly not least, Kristin is the proud mother of two children who bring joy and meaning to her life. She is deeply committed to being a loving and supportive parent, and her children are her greatest source of inspiration and motivation

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