SEATTLE — Law enforcement agents shot and killed an antifa supporter on Thursday as they moved to arrest him in the fatal shooting of a right-wing activist who was part of a pro-Trump caravan in Portland, Ore., officials said. The suspect, Michael Forest Reinoehl, 48, was shot by officers from a federal fugitive task force during the encounter in Lacey, Wash., southwest of Seattle, according to four law enforcement officials familiar with the investigation. Lt. Ray Brady of the Thurston County Sheriff’s Office said in an interview that the law enforcement team was in the area looking for a homicide...