Mona was outdoors at about 3:30 Saturday afternoon when someone snatched the pup in broad daylight.
A short time later, one of mead's neighbors spotted a man walking the dog and took action.
"First, she thought he was a dog walker. So, she was watching him. And then, she thought something was strange, and she actually got him to pose for a photo on her cell phone, and then she texted it to me. I immediately called 911," Mead told ABC7 Chicago.
Meade showed the picture around to people in the neighborhood. Eventually, Mona was found at Oz park. A man had reportedly tried to sell the dog.
Police have a man in custody and charges are pending.