Laramie, WY – The U-S Fish and Wildlife Service is investigating the deaths of four wolves in western Wyoming. One found near Daniel is already considered a human-caused death, while investigators are awaiting lab results on how three other wolves near Cody died. It's been two years since Wyoming has had an illegal killing of a wolf. U-S-F-W-S Law Enforcement Agent in Charge of Wyoming Dominic Domenici says these cases do raise alarms. Domenici says officials do expect a few more human-caused wolf fatalities as the population grows. He says they're trying to keep any wolf deaths as low as possible because officials don't want to see wolf deaths as a complicating factor in the de-listing process. Domenici expects the lab results on the three other wolves this week.