PORTLAND, Ore. (AP) — Investigators with the Oregon Department of Fish and Wildlife are offering a $1,000 reward for tips that lead to an arrest in the shooting of mule deer with blow gun darts in eastern Oregon. The Oregonian/OregonLive reports Oregon State Police troopers found the carcass of a fawn in the city of Burns in November. The animal had a blow gun dart lodged in its neck. Three more mule deer were found with similar injuries in following months, but biologists were able to remove the darts and release the animals. It is illegal to hunt deer with blow guns in Oregon.