septa, a different train operator call in it dispatch saying i believe i've been hit with something. perhaps some sort of projectile a stone, something to that effect. we know that after that was reported to dispatch this conductor said she believed she heard the engineer of the amtrak train say that the same sort of thing happened to his train. that is what she believes. so this is something that investigators are now looking into. was this amtrak train struck with some sort of projectile. we know that there is damage to the lower half of the windshield. and it is a circular force, a circular sort of pattern in the windshield. and now they want to find out was this train struck as well. today accident investigators met for the first time with the train's engineer brandon bostian, as well as two assistant conductors. the interviews will be critical in determining what caused the