The U.S. Forest Service is investigating the killings of nine wild horses found fatally shot in an Arizona national forest. The horses found in the Apache-Sitgreaves National Forest "showed evidence of bullet wounds, indicating they were shot," the agency said in a news release issued Thursday, January 29. The animals' bodies were located in the Black Mesa Ranger District within the park, which is located in east-central Arizona and spans more than 2 million acres.