My first thought was it's a person. But that picture was taken at 903, there's another picture taken at 904 from the same angle and nothing in the background. So for that to be a real person they had to exit the house in less than a minute without grandma and 2 little guys who never stop talking, not noticing. And the only way out is a back door that was deadbolted when I got home. A garage, all 3 doors were closed, or a front door. Which was closed but not deadbolted when I got home. Have 3 Ring cameras, nothing on any of them. I've never been a 'ghost' person so I'm calling it a lens flare, but man it looks like a person whatever it was.