Search and rescue teams are looking for a missing 23-year-old man who wandered off into a state park.
Dockery's sister says he suffers from depression and may have been upset that night. Friends say he was having a good day but was upset all of a sudden by something that happened that day.
More than 200 people joined Dockery's family and friends Thursday night at a vigil in Santa Rosa.
Dockery does not have his wallet or cell phone with him.