The Outagamie County district attorney has ruled Appleton police officers used reasonable force during a double-fatal shooting at the Valley Transit Center last month. Firefighter Mitch Lundgaard was fatally wounded when 47-year-old Ruben Houston of Wausau started shooting. D-A Melinda Tempelis says Sergeant Christopher Biese and Officer Paul Christensen acted properly when they shot Houston to death. Christensen and a woman who had been used as a human shield survived their wounds.
