Mark Raymond Tourney was 53 when he vanished from Keaau on the Big Island of Hawaii in July 1999; the exact day in July is uncertain. He is described as a Caucasian male, six feet one inch tall, about 185 pounds, with brown hair and brown eyes.

The case has few concrete details. In November 2004 Big Island police issued a media release noting Tourney used several aliases, including Mark Raymond Hollman, Mark Raymond Jeter, and Marcos L. Hollomin. Investigators at that time believed he might still be living on the Big Island under one of those names, and the case is officially classified as missing with no evidence of foul play reported.

Does anyone have information on Mark Tourney, his known aliases, or memories of him living on the Big Island around 1999?