Loies Loyola, 26, of Bluffton has been charged with ill-treatment of animals after his dog died of heat exhaustion last week.
On the afternoon of July 21, a neighbor reported the dog was dead in a yard off Live Oak Walk.
"He had chained the animal up before he left that morning, and I guess he forgot about it or didn't get back to it quickly enough," said Sheriff's Office spokeswoman Sgt. Robin McIntosh. "The animal died from heat exposure."
The dog was taken for a necropsy, and after its cause of death was determined, Loyola met with animal-control officers and turned himself in, McIntosh said. He was arrested and released Wednesday.
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Ill-treatment of animals carries a maximum prison sentence of five years.