her 2005 cobalt on a rainy two-lane road when her key shut off, and as a result of her key shutting off, she lost her power steering, her anti-lock brakes. she lost control of her car, it went into the oncoming lane of travel whether it was the collision, and brooke died as a result of the collision. >> as far as you know, had she made contact with the key? >> it appears she did, yes. >> given the fact that it was in the accessory position at the time of the impact? >> mr. hood, you're the engineer who's put it all together. you're the guy who, not the government, not gm but for you, and i read that profile of you in the times recently, we wouldn't know what we know today. can you explain to me in terms that i can understand what you discovered? >> after lance brought the ignition assembly from brooke's vehicle to me. we started diagnosing the way the switch worked, looking at