"I didn't notice what she had around her neck until I put her in my vehicle," Obregon told The Dodo.
Something like a shoestring was tied tightly around the dog's neck. As Obregon passed the fence, she saw the other part of the string tied there. Obregon thinks the dog was limping because she strained to break free.
"The saddest part is that even when she broke free of the string, she still stayed in the same spot, as if waiting for the people who left her there," Obregon said.