Editor’s note: This article contains graphic details of a violent crime that some readers may find disturbing. As the case remains under investigation, new developments may arise. Reader discretion is advised. Every McKinley High School student walks through the halls of the W Building as part of their daily routine, often unaware that nearly 50 years ago, those same halls became the site of one of Hawaii’s most infamous unsolved murders. For decades, the question remained unanswered: Who murdered Dawn Momohara? Now, with recent advancements in DNA technology, the Honolulu Police Department has identified a suspect—Gideon Belamidi Castro, a 1976 graduate of the school. "In the weeks leading up to the arrest, our investigators worked with the Honolulu Police Department’s Scientific...