To me, Oswald’s boddy language when he said “I’m a patsy” says it all. I had never heard the word “patsy” before, but I instinctively knew what it meant. I was eleven at the time, and I could tell he was angry, but not worried, because he knew he could prove his innocence. Then they killed him.
Everybody in prison is innocent.
I’m a patsy. That’s exactly what I would tell the cops after I murder someone.