Animal Protection New Mexico has offered a $10,000 reward for information leading to the arrest and prosecution of those responsible, according to a report by AP News.
Their remains were found near the town of Cloudcroft, in the Lincoln National Forest.
The story did not say if they were free-roaming horses, which are found in the area.
Western Horse Watchers Association 
Barbaric and sadistic! Whoever did this cruel and cold blooded act must be tracked down and punished to the maximum extent of the law!