The Marion County Sheriff's Office is investigating the shooting of a pure-bred horse. It happened around 6 o'clock Monday night near Silverton. Don Thomson, with the Sheriff's Office, says they think the shooting was intentional. Neighbors say they heard a single rifle shot. The owner of the horse wasn't aware of the shooting until contacted by deputies. The horse was worth $5,000. The Sheriff's Office is asking for tips to help identify the suspect.