Rayman Handy, 43, disappeared from Fountain Valley, California, after driving his dark blue Honda Accord to the Fremont Peak area on January 20, 2007. He planned to go hiking and his car was found parked on a dirt patch with a hand-drawn map of the area inside, indicating he intended to explore the region.

Handy was an experienced hiker with more than 20 years of outdoor knowledge and had a background in chemistry and electronics from the University of California, Irvine. Temperatures near Fremont Peak dropped below freezing at night after he went missing, and authorities say he may have succumbed to the elements; an extensive search, however, turned up no trace and his body has never been recovered. The case remains open.

If anyone has information about Handy’s movements on or after January 20, 2007, please contact the Fountain Valley Police Department.