The video data showed that, at about 18:14 on the day of the incident, Yang Dong driving his car passed by the incident road section, and a middle-aged man on a bike came out of the roadside of the rear of the truck all of a sudden.
视频资料显示，事发当日18时14分许，杨东驾车路过事发路段，突然一名中年男子骑自行车从一大货车的后侧方钻出来。