Missy Avila | 98

On October 1, 1985, 17-year-old Michele "Missy" Avila went out with her friend, Laura Doyle. Hours later, the Avila's phone rings and it's Laura asking to speak to Missy. Mrs. Avila's heart sank because she assumed they were still together but Laura explained that Missy saw some guys she knew and left with them. Three days later, a hiker found her deep in Angeles National Forest face down in a stream with a log across the back of her neck.