ah, the old chime guy
people have known about this guy for like i'd say a year now, all we know about him right now is that he spawns when it's raining and makes that sound at some point and disappears
we haven't seen any appearance of him, any behavior beyond that basic info, pretty much nothing
other than the fact that his model might possibly have a gas mask
but yeah, this thing has already been "documented", unless you have more info on it (which i extremely doubt) it's not really anything new