Twistex

how they died:TWISTEX team members Tim Samaras, his son Paul Samaras, and Carl Young were killed on May 31, 2013, when they were struck by the massive EF3 El Reno, Oklahoma, tornado. The violent, rain-wrapped, and rapidly expanding multi-vortex tornado caught them by surprise while they were conducting research, throwing their vehicle over half a mile. yes I got this on Google I'm lazy.