Classic case of an individual not being able to determine just how far away the aircraft and contrail is. He claims that the aircraft is "directly overhead" and attempts to find it on Plane Finder. He notices on Plane Finder an aircraft heading for his location and steps out to film it. He believes that he is filming the Airbus A320 UA549 UAL549 N428UA that appears with the picture on the left of the Plane Finder screen. The video is slightly blurred but the airliner actually selected on the moving track is Flight Number 5925. That is United Express Embraer ERJ-145LR registration N16963. UAL549 Airbus A320 came nowhere near Streamwood and landed at Chicago O'Hare from over the lake. It didn't fly west of O'Hare. http://www.flightradar24.com/2015-03-02/16:29/12x//5a7a565 The initial aircraft that he films is obviously at considerable distance.