"He was in there ... asking about what he should get his co-workers as self-protection," said O'Neil Kidwill, the gun shop owner.
"I recommended the .38 Smith & Wesson snub nose and perhaps a bulletproof vest. He said he already talked to some of the people about the vest, and he would tell them about the revolvers."
The county district attorney didn't give any indication that he felt personally threatened, only worried for his employees.
"He was concerned for them. For himself, he was at ease," Kidwell said.
But sometime after he left the gun shop, something happened.
The couple's bodies were found inside their home in Kaufman County.
They had been shot at least a dozen times, a law enforcement official, who had been briefed on the investigation, told CNN this week. The official was not authorized to publicly release details of the investigation.
While authorities have not publicly named any suspects or a potential motive in the cases, Kaufman sheriff's deputies arrested two men this week and accused them of threatening the safety of public officials.