its the question asked every time you see a pic of anything like that happening, like seeing a man slipping off a roof. why u standing there taking pics?! maybe save his life!
its possible that this was all photo-shopped…. and yes, of course you should try to save it, because its possible that the reason you witnessed this was bec hashem wanted you to be there, see it, and do something about it…. He’s got a plan for each of us every minute!