catastrophic event, it could have been a bomb, it could have been something mechanical, as well. boeing will be involved in the investigation. that company wants to know, is there something wrong with its latest version of its most popular plane, the 737? david? david kerley tonight. david, thank you, as always. and back here at home, and to the deadly high school shooting in north carolina today. police say a student was shot and killed during a fight in a crowded hallway. the school was put on lockdown. frantic parents rushed to pick up their children, and they were held back for a time. it was agonizing for them. here s abc s eva pilgrim now. oh, he s got a gun! reporter: chaos in a charlotte-area school. students running for their lives. matthews pd is advising someone shot at the school, one male student is injured. reporter: the shots rang out just after 7:00 a.m. i saw the gun and i had to run. reporter: as students capturing the panic on instagram. the victi