Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Sheriff: Dive Boat Victims Killed by Smoke, Not Flames Associated Press SANTA BARBARA, CALIFORNIA - Dozens of people trapped on a scuba diving boat that caught fire off the Southern California coast appear to have died from smoke inhalation, not burns, authorities said Friday. "The indicators are from the preliminary examination of the bodies that the victims died prior to being burned,'' Santa Barbara County Sheriff Bill Brown said. "The burn damage to the victims was post-mortem.'' More than half the 34 people killed as they slept in bunks below deck early Monday have been positively identified through DNA, and their family members around the world are being notified, Brown told reporters. Divers are searching for the one body that still has not been found. Five crew members jumped overboard after trying to rescue the 33 scuba divers and one crew member whose escape routes were blocked by fire, federal authorities and the boat's owner said. The crew, including the captain, said they were driven back by flames, smoke and heat. Multiple investigations into the disaster are focused on determining what happened and have not become a criminal probe, though Brown said charges are possible. Notifying families that their loved ones were aboard the Conception and gathering DNA to identify remains burned beyond recognition has taken an extraordinary worldwide effort. A mother in Japan was told Thursday that her child was on the boat. The FBI also had to deliver the news to a family in Singapore and relatives from India who flew into California, Brown said. The remains of 18 people have been positively identified, and the sheriff released the names of nine whose families have been notified. .