A retired U.S. Customs and Border Protection agent was among two victims killed in the deadly shooting at the Kickapoo Lucky Eagle Casino on Sunday, Eagle Pass Aaron Valdez confirmed on social media. 

Mayor Valdez described Marcus “Mark” Antley as a beloved member of the community and said he was remembered for his law enforcement career and impact on Eagle Pass.

“Mr. Antley dedicated much of his life to public service and law enforcement. He will be remembered not only for his career but also for his generosity, leadership, and the lasting friendships he built throughout Eagle Pass and the region. His passing leaves a deep void in the hearts of many,” Valdez wrote on Facebook.

Razor wire in Shelby Park in Eagle Pass, Texas, an area along the Rio Grande.  (Matt Finn)

Police say they were able to obtain confirmation through vehicle tracking and license plate recognition (LPR) systems, allowing the Texas Department of Public Safety to find the suspect. He now faces two counts of capital murder and five counts of assault with a deadly weapon.

Maverick County Judge Ramsey English Cantú praised law enforcement for their coordinated response. 

“Together, our local, state and federal partners worked around the clock to bring this individual into custody,” he said. “Now, we must assure justice for the victims and their families. We will not tolerate violence in our community.”

The state flag of Texas flying in the sky. 

The Kickapoo Traditional Tribe of Texas Police Department is leading the investigation alongside state, local and federal agencies.

“This is a painful reminder of how fragile life is,” Valdez said. “In moments like these, our community’s greatest strength is our compassion and solidarity. Together, we will overcome this dark moment.”