(FOX NEWS) The family of a murdered U.S. Immigration and Customs Enforcement agent is demanding to know if U.S. agencies could have seized the weapons used to kill him before they crossed the border into Mexico.

Amador and Mary Zapata also believe their son Jaime, who was only in Mexico for 9 days before his death, was not adequately trained for his assignment, a trip on one of Mexico’s most dangerous roads in a $160,000 armored Suburban.

“We want to find out the truth,” Amador Zapata said from the living room of his Brownsville, Texas home. “Who thought of this program? How come they let those weapons go – when they knew who had bought them? How come they let them go through the border – without trying to stop them? That’s what we want to know.”

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