preddy inherited his love of trains from his father, jim preddy jr., who in turn got it from his dad.> when i was small, my father and grandfather would take me to the train tracks in greensboro and once he started getting a little bigger and we started going outside the tracks and watching trains and he got interested and started taking pictures of them. >> on the day of the collision, father and son head to one of their favorite spots to train watch. a railroad crossing by a recycling transfer station. while dad waits in the car, the young train buff walks to the other side of the tracks and starts recording a tractor-trailer that stops right in the middle of the crossing. as the gates start to close, he quickly realizes he, too, is in danger. he makes a split second decision to run to a safer location. >> i noticed that there was about to be a bad day so i took off running with my camera farther away from the tracks. i didn't want to get hit by any flying debris or anything. >> he plants his tripod and starts adjusting the camera moments before impact. >> i didn't think i was going