Missing government worker Melissa Casias has been found dead ... with her body "skeletonized" and a gunshot wound to her skull, a report says. According to New Mexico State Police , a hiker found "human remains" at McGaffey Ridge area of the Carson National Forest ... who authorities have ID'ed as Melissa. They also said a gun was found "alongside the remains." NMSP hasn't announced cause or manner of death, but investigator Thomas McNally -- who'd been looking into the case for Melissa's