LOS ANGELES — The guy seems relatively calm from a distance. Young and thin, with dark-rimmed glasses and a flop of bleached hair, he sits straight-backed in his seat, occasionally rocking from side to side, eyes fixed on a computer monitor before him.
Closer up, it is a different story.
The fingers of his left hand flutter rapid-fire across a keyboard — click-click-click — and his right hand, gripping a wireless mouse, jerks in sudden movements. Sean Cook is controlling a video-game character on the screen, guiding it up a flight of stairs and blasting away with a shotgun. He speaks urgently into his headset.
