India, June 8 -- A teenage girl accused of stabbing three horses at a Las Vegas barrel racing competition is facing possible adult charges, as the animals' owners speak out about the lasting physical and emotional damage caused by the attack.

The teenager was arrested after three horses were allegedly stabbed on May 30 at the National Barrel Horse Association's Professional's Choice Vegas Super Show at South Point. Authorities believe she used a knife to wound the horses inside the barn, where she had access. The horses' injuries were non-life-threatening but prevented them from competing in the event, per ABC News.

She was charged with 12 counts of willful or malicious killing, maiming or torturing a horse and three counts of felony ma...