Cops in Colorado are on the hunt for a dognapper who "had the audacity" to throw a person's four-legged best friend out of a moving vehicle, breaking its spine and forcing vets to put him down.

A Commerce City dog was stolen from his home in November and thrown out the window of a moving car, breaking his spine and forcing the vet to put him down.

Police are looking for suspects after a dog was thrown out of a moving car, breaking his spine and leading to his euthanization.

Police in Commerce City, Colorado, are searching for the individual who threw a dog from a car window on November 23, causing a broken spine.