SANTA ROSA, Calif. (AP) - A 21-year-old Wisconsin man contacted police Tuesday and was questioned in the mysterious shooting deaths of two Christian camp counselors. Sonoma County detectives sent out a statewide alert Tuesday seeking Nicholas Edward Scarseth, of Chippewa Falls, Wis., as a "potential witness" in the killings. When Scarseth heard about that from media reports, he got in touch with authorities, Sheriff's Lt. Dave Edmonds said. "We have located him and we are speaking with him," Edmonds said. "We want to question him to determine what he knows about this case. He has not been charged. This is...