During the storm, as night falls, Jurassic Park's computer programmer, Dennis Nedry, who has been bribed by a corporate rival, Lewis Dodgson, to steal dinosaur embryos, deactivates the park's security system to allow him access to the embryo storage room. The power goes out, and the tour vehicles become stuck. Most of the park's electric fences are deactivated, allowing the Tyrannosaurus rex to escape and attack the tour group. Grant, Lex, and Tim narrowly escape while the Tyrannosaurus devours Gennaro, injures Malcolm, and pushes one of the vehicles over an embankment. On his way to deliver the embryos to the island's docks, Nedry becomes lost in the dark, crashes his Jeep, and is killed by a Dilophosaurus.