Sunday night around 6 p.m., Lark and Greg Hinman were crossing Common Street at Skyridge Avenue with their Golden Retriever O'Riley.
"I saw a green van come up to the stop sign and do a 'California stop,'" Greg Hinman said. "He made a right hand turn onto the street that we were walking across and he just floored it."
The driver ran into Hinman as he tried to brace himself from the impact.
"As I rolled over I saw him hit the dog, and the dog go under the car," he said.
Hinman said the driver then stopped.
"He said, 'Oh, My God, I'll go get help.' And that's the last we saw of him," Hinman said.
"To me it's unforgiveable, and certainly not a thing I would ever do," Hinman said. "I don't feel whole right now."
Hinman was rushed to Sky Ridge Medical Center with scrapes and bruises, and O'Riley went to an animal hospital.
Doctors treated and released both Hinman and the dog, but Monday morning, O'Riley went back into the hospital.
"We laid on the floor with him and he wasn't breathing well," Hinman said. "He wouldn't eat, he wouldn't drink."
The driver is described as a white man in his 40s with facial hair and long dark hair, according to police. He is described as wearing a white T-shirt.
Hinman believes the man drove a Dodge Caravan.
"We understand that people get scared out there when things like this happen," Lone Tree Police Commander Ron Pinson. "They don't really know what to do, but you know, just come forward. Tell us what happened. Tell us your side of the story."
The Lone Tree Police Department asks anyone with information to call 303-339-8150.
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