Do you know who murdered Margaret? Margaret Agnes Hauanio, a 16-year-old White female, was last heard from in the early evening when she told a family member she was on her way home from Leeward Community College. She had been studying, pushing herself through college early, and her family remembered her as bright and creative, someone who wrote poetry and music and talked about a future in medicine. 
Sometime after that call, she vanished along an ordinary route that suddenly wasn’t ordinary at all.
Later accounts described investigators believing she may have been picked up by people she knew or forced into a passing car as she walked along a dark road between the college and the bus stop. By the time anyone realized she was truly missing, the night had already swallowed up whatever happened next. 
Her body was found the following day in the Waipahu area, described in reports as a dirt-road scene and, more broadly, a pineapple-field area near Crestview. The violence was unmistakable: her skull was fractured, her hands and mouth were taped, and a small rope was around her neck—described by her mother as arranged in a way that could tighten and choke if she struggled. 
As for suspects and arrests, public reporting over the years has emphasized what didn’t happen: no arrest that led to prosecution, no one charged, and no trial that could explain why she was taken and left that way. When a former Marine was arrested decades later in another 1975 teen murder case, authorities were quoted as saying he was not a suspect in any other Hawai‘i homicide cases, and Hauanio’s killing was still described as unsolved—kept alive by her family’s hope that someone, somewhere, would finally say what they know. 
