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Well does it look kinda like the "white thing" under his chin kinda goes up around his neck towards his right? Looks like I see part of it kind of go under the edge of his coat at the collarbone and then a bit sticking out up towards his shoulder/neck area. Maybe a scarf or some oversized clothing? I dunno, it looks kinda connected to me though. Maybe.
Also to me it really does look like a gun in the pocket for sure. And it seems he is starting to take his right hand out of the pocket but it could just be the different angle I suppose.
All the above is JMO. Sigh.
I cant help but notice how starched his pants are .. anyone else notice this ?? like there is something flat on his left thigh ?? IMO that's what I see and maybe he has his clothes dry cleaned ?? that would for sure get rid of any evidence lurking .. or is it possible he had something slid down there he was disguising .. anyone else see this ?? IMO that would be a good start has anyone brought in items of clothing to be cleaned that had stains like blood ?? Again this is all IMO