B
It was the dumb, naive, young patriotic, Herb Philbrick emulator .... Lee ( The Patsy ) Oswald.
Oswald did not shoot at anyone in Dallas, the chap was all over the place trying to provide for his family, and also doing good for mankind with his socialist work.
Walker the queer set that shooting up at his house to provide himself with some sort of alibi as a victim, it was to be almost identical to the J.F.K shooting to try link both to the same person. Ie through a window high powered rifle.
Point to note the shot that went from the Dal Tex into the TSBD and back out onto Elm, was very similar to the shot that got fired in Walkers window, the sniper had the exact same ark of fire, through the window frames