The three degenerates who lynched Mr. Arbery were not hillbillies. I have hillbillies in my family tree, and they lived in the hills. They were related to the Hatfields and left Kentucky, heading for California with a herd of horses, because they "didn't want to die in a senseless feud."
Arbery's murderers are crackers. Originally crackers were cowboys in Georgia near the Florida border. They managed their cattle with bullwhips, which made loud cracking sounds when snapped in the air.
"Cracker" meant a braggart in Shakespeare's England. In America the term came to mean ignorant, non-elite cowboy or something more derogatory. But some Georgians do take pride in the term. The best known cracker, so to speak, is probably Jimmy Carter. (I don't know what he feels about the term.)
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