Scott Vaughan was 37 when he was last seen in Lihue, Hawaii, on April 25, 2019. He reportedly lived mainly on the west side of the island and had no cell phone or vehicle, leaving no digital trail and limiting obvious ways to trace his movements. Family and authorities describe him as often wearing his hair in a bun under a baseball cap; on the day he disappeared he wore a blue T-shirt, board shorts, and slippers.

Those few details — last known location, clothing, and lack of personal communication devices — are essentially the only public anchors for the case. The absence of a phone or car has complicated efforts to establish where he went after April 25. If anyone saw Scott in Lihue around that date or has information about his movements or contacts, please come forward.