The deaths of two horses last Thursday at a farm north of Richmond has prompted the Missouri State Highway Patrol to launch an investigation.  Authorities said the fatal shooting was believed to have occurred on property located near Route K and Highway 13 sometime between 10:00 and 10:30 a.m. on March 1.  The owner could not be reached for comment.  Anyone with information about this case is asked to call the Missouri Highway Patrol at (816) 622-0800.  A cash reward is being offered for information leading to the arrest of the person responsible for the shooting.