On Wednesday, the search for 11-year-old Ryan Larsen entered its third day. The Nebraska State Patrol issued an Endangered Missing Advisory for the La Vista boy after he walked out of La Vista West Elementary on Monday around noon. Sign up for our Newsletters Authorities say Larsen has autism. He's described as being 5 feet, 8 inches tall, around 125 pounds, with brown hair and hazel eyes. Ryan was last seen wearing a black jacket, blue jeans,...