millions again watching that part, as well. all part of elon musk s hope of carrying people back to the moon and starting a colony on mars. abc s david kerley leads us off from cape canaveral tonight. three, two reporter: from the same launch pad america sent men to the moon liftoff of falcon heavy. reporter: elon musk s spacex ignited the falcon heavy, the biggest rocket in the world. you heard the callout. vehicle is supersonic. reporter: actually, three rockets strapped together. the two boosters recycled. cheers as they pull away from the $90 million vehicle. successful separation. reporter: but this private space company with intentions of going to mars wasn t through. those boosters slowing re-entry with another engine firing and a nearly synchronized landing. and the falcon has landed. reporter: and then, the big reveal of the cargo.
assault-style rifle. joining us now, kristen brady, a student at umpqua community college. can you tell us where you were and what you heard? how it began for you? i was actually outside by my car with a friend. i was putting away my anatomy and physiology book and as i was putting it away, my friend and i heard these popping sounds. and at first, we thought it was an engine firing back until a teacher or administrator told us that it was a live shooting and told us to get into our cars. you then got into your car? i got into my car and then i rather panicked and tried to lay down as much as i could in the car. my friend was able to drive away and on her way out of the