Three professional "storm chasers" were among the 13 people who died in the tornadoes that ripped through the Oklahoma City area Friday, the research project they ran confirmed Sunday.
Tim Samaras, 55, founder of the tornado research project, called Twistex, based in Lakewood, Colo.; his son Paul, 24; and their chase partner, Carl Young, 45, all died after they were overtaken by a multiple-vortex tornado that sharply changed direction near El Reno, Okla., The Weather Channel first reported.
Twistex confirmed the news Sunday in a statement.
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