A MAN SUSTAINED SERIOUS INJURIES AFTER FALLING FROM A DAVENPORT CLIFF YESTERDAY (THURSDAY) AFTERNOON. THE INCIDENT BEGAN AT 2:10 P-M WHEN A MAN FELL ABOUT 20 FEET ON THE SOUTH END OF DAVENPORT BEACH. RESCUE CREWS ARRIVED TO FIND THE VICTIM UNCONSCIOUS WITH LIFE THREATENING INJURIES. HE WAS LIFE FLIGHT-ED TO A BAY AREA TRAUMA CENTER. THE CAUSE OF THE FALL IS UNKNOWN AT THIS TIME.