There is no evidence of the bag containing curtain rods which Oswald denies bringing to work. Then either Oswald had a pancake for lunch or he didn't see the bag carried from the front, as he said in testimony.
You’ve just quoted Bugliosi as saying "he left his wedding ring in Irving, so he must have killed the President”. Cite that, please. And show us where anyone other than you said "he went to a movie, so he must have killed JFK"
Oswald "just" went to a movie. He "just" left his wedding ring. He "just" left the building shortly after the shooting. He "just" took a bus. He "just" took a cab when the bus was caught in traffic. He "just" showed no interest in the assassination. He "just" owned a rifle. He "just" was seen carrying a large package to work that day. He "just" surprised his wife by visiting her in the middle of a week. He "just" held radical anti-American views. He "just" he "just" he "just".
He "just" did all of these things.
See what they do? They strip every single act that he took - give it an innocent (and partial) explanation - and then remove it from any larger context at all. Each of these acts are judged in isolation from each other.
That's how a Mark Lane, a defense attorney operates. Imagine using this type of thinking in evaluating any other historic event? You'd be laughed out of the room. But in Oswald defender world it's all about defending him.