November 6, 2008 6:14 pm Buried Treasure? Could be, according to mysterious symbols that can be found in the regional park there. We show you the clues! US & World Videos 2:29 Family mourns 13-year-old killed in Escondido crash 2:01 No evidence Oceanside Pier fire was arson, officials say 10:00 Small plane crashes into El Cajon neighborhood | San Diego News Daily 2:20 Audio details what happened moments before small plane crashed in El Cajon 0:46 San Diego's next police chief could be confirmed Monday