It only seems to us passengers do things crazy because we know the dangers. They do not or they often forget. It is unlikely we’ll ever know why he went towards the tail rotor but from the reports so far it would be unlikely it was for a selfie. If anything can be guessed at, it could have been that he possibly went back to take a photo of his parents landing in the second helicopter or to watch them.
A young man lost his life tragically. One day his family and friends might read some of the posts on here. Please show a bit of respect.