control vehicle barreling down highway 190. his life and the lives of others may hang in the balance. >> how fast are you going, sir? >> i'm going about 60 miles an hour. i tried using my gear shift, emergency brake, regular brake. >> the first to respond to he call is rocky carol, a patrolman from sam houston university. >> i immediately grabbed a set of keys and i left out of the driveway with the lights and sirens. >> a fellow officer follows carol. his dash cam also trained on the chase. >> i'm in a green ford expedition. i don't want to kill anybody. >> i tried turning the ignition to see if i could turn it off. i tried hitting on the dash board. maybe that will disengage it. i tried all i thought i could do. >> as patrolman carol's car sets out to find jeter, jeter is facing a life or death decision. how to keep from hitting somebody and killing them and himself.