SAN DIEGO (CBS 8) - Rescue crews are stepping up the search for a hiker who has been missing in the Anza-Borrego Desert since Sunday.
Guillermo Pino, Jr.'s family is still holding on to hope the 25-year-old will be found alive.
In this News 8 exclusive video, we get an up close look at the mudcave where Pino was last seen.
