They didn't know the dog's name, so they started calling him Ollie-Loo.
Just before they left, a neighbor bolted over to them, and asked what they were going to do with the dog. "I told her who I was - that I was with a no-kill animal rescue called DAWG," Looby said. "She said the owners were kicked out about a week ago, and the landlord kicked the dogs out of the house. She said that the owners did come back for the small dog, but left Ollie-Loo out with the trash."
This seemed to explain the "small dog" mystery, although it wasn't clear why the owners had left Ollie-Loo behind.
Based on Ollie-Loo's visible ribs, Looby believed he'd been outside for a while - maybe two weeks.