The year 2017 was the first year when a civilian multicopter drone collided with a manned aircraft. It was expected for a while and there were several false starts. One thing is curious though - how did they find the operator of the drone? I presume it wasn't something simple like a post on Facebook with a video of the collision. They must've polled witnesses in the area, then looked at surveilance cameras or whatnot, to get it narrowed to vehicles.