welcome back, a tragedy at a popular southern california beach after a cliff collapsed, killed at least three people and left two others injured. a piece of sand stone bluff at grand view beach north of san diego actually broke off on friday dumping a pile of debris believed to be weighing tens of thousands of tons, and then prompting a desperate search for victims, potentially trapped under the rubble. rosa flores joining me now with more on this. do officials understand how and why this happened? you know, they say this is natural because there is natural erosion. beaches normally do this in this part of the country, and they say that officials warn and lifeguards on the beach warn beachgoers all the time about this. there are signs posted as well. i just got off the phone with the sheriff s office and they