3 brothers in south Texas, one a Border Patrol agent, charged in drug cartel-linked murder case

Joel Luna seemed an ideal Border Patrol hire: south Texas native, high school ROTC standout, Army combat veteran.

A ledger documented the sale of drugs, guns and ammunition. Most damning of all, authorities said, was a commemorative Border Patrol badge and documents belonging to Joel Luna, including his work station password and Security Service Federal Credit Union account number.

Joel said he “had no knowledge of the safe,” according to investigators’ dash camera video. He was arrested on various charges, including tampering with evidence and capital murder. In his mugshot, he looked weary.