MOUNT VERNON, Wash. — People around the world who've followed news about the killings of four University of Idaho students in November 2022 know Ethan Chapin as one of the victims, and maybe not much more than a name and a few photographs. To his family and friends, of course, he meant infinitely more — as a friend, classmate, basketball teammate, brother and son — remembered more for the 20 short years he was alive than the horrific way his life ended.