This is from the Lone Gunman people. They admit that it's Lovelady in the Couch film.
It's nice to see that, but that's a very distorted image. We have better ones. The most important thing about the image is that Lovelady is wearing a short-sleeved shirt.
That was just seconds after the assassination- less than a minute. So, if that's Lovelady- and it was- then he could not possibly be Doorman, since Doorman is wearing a long-sleeved shirt.
That wraps it up, don't you think?