September 30, 2025
(McKinney, Texas) – Collin County District Attorney Greg Willis announced that Jhirrell Harris, 44, of Monroe, Louisiana, was found guilty of Capital Murder by a Collin County jury and sentenced to Life without the possibility of parole for committing the November 2023 crime at a Walmart in Frisco, Texas.
The Crime
On the night of November 15, 2023, at around 9:30pm, the Frisco Police Department responded to the Walmart at 8555 Preston Road. Officers found Dung Doan, 62, and Army veteran Zachary Lowe, 22, both shot outside the store. Doan’s wounds proved fatal, while Lowe — a Walmart employee on break — survived. Doan had recently come to the United States with his family as legal immigrants, building a new life together, and was a customer that day.
The Investigation
Frisco PD Detectives Kyle Marks and Sanja Trtanj determined that Harris and an accomplice acted together in the robbery-turned-murder. Through interviews, forensic testing, and cellular mapping, investigators tied Harris and his accomplice to the crime. An anonymous tip to Frisco PD’s 411Tip line also aided the case.
Cellular records and social media showed that the accomplice had brought Harris from Monroe, Louisiana, to a Collin County residence one week before the crime. Those same records placed the accomplice’s phone near the Walmart at the time of the shootings. Harris and the accomplice fled back to Monroe the next day, where Harris was later found to have fired the Frisco murder weapon 24 days after the killing.
The Trial
After a three-day trial, a Collin County jury found Harris guilty of Capital Murder. Judge Benjamin Smith imposed the mandatory sentence of life in prison without the possibility of parole, as required under Texas law.
Statement from DA Greg Willis
“Harris was a menace whose cold-blooded violence stole the life of an innocent man and left a young Army veteran wounded outside a neighborhood Walmart. Collin County and beyond are safer tonight with him locked up for good,” stated Willis after sentencing.
Prosecution Team
Assistant Criminal District Attorneys Dewey Mitchell and Christina Skipper prosecuted the case, aided by District Attorney Investigator Laurie Gibbs and Victim Assistance Coordinator Melissa White.
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