It does not seem to be that easy despite all the cctv we have. They gave up the hunt for the Putney Bridge bus push suspect, who pushed a woman in to the path of a bus while jogging, this happened in broad daylight on a bridge in London and they never traced him.
I know this has been going on for some time but it is a lot of cats... could it be some weird small group who get their warped jolly's from doing this linked up on the dark web ?