SEATTLE (AP) - A marksman last month killed the alpha male of a wolf pack that had repeatedly attacked a rancher's cattle. The shooting put an end to the so-called Wedge pack, but it did little to quell the controversy over wolves in Washington state. The issue has been so explosive that state wildlife officials received death threats and the head of the Fish and Wildlife Commission warned the public at a recent hearing in Olympia on wolves that uniformed and undercover officers were in the room ready to act. More conflicts between wolves and livestock are inevitable, officials say, as wolves in Washington recover, growing in number more quickly than expected. The animals numbered a handful in 2008, and are now estimated at between 80 and 100.